2026-05-17T06:21:56Z https://yabu.me John Faithfull 🌍🇪🇺🏴󠁧󠁢󠁳󠁣󠁴󠁿🧡✊🏻✊🏿 https://yabu.me/npub1xsupzq66zunjccnnkx4lpmk7vm3rzgxn6d9fqndt7vphkkwg27qsxgmy8g https://media.mastodon.scot/accounts/avatars/111/183/064/082/399/467/original/e4883b5aa361fea2.jpg https://media.mastodon.scot/accounts/avatars/111/183/064/082/399/467/original/e4883b5aa361fea2.jpg https://yabu.me/nevent1qqs85jz5gu8a4yzkh7f4fddf39u6fc2t4me8ergtggawh548fdhy67szyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczmuq740 In reply to <a href='/nevent1qqsym48qjx8ah9f3ampym4gt9rlntr2j246c57ur5lfj82tmv4hzrwczpdaxd'>nevent1q…daxd</a><br/>_________________________<br/><br/>Could be a godzilla-sized godwit that&#39;s a long way away. Like #TinyBalancingSheep 2026-05-03T13:50:37Z https://yabu.me/nevent1qqsydu6h6ssxh0de05laecq3vaynzl98xzq4grvujjd54ydw7km22aqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczgfex0a In reply to <a href='/nevent1qqs9l4djpea84etqqfpkayh992gm2z2052jmdtkr5evexwkvfvpf44g6egyy3'>nevent1q…gyy3</a><br/>_________________________<br/><br/>This is maybe terrible, but I&#39;m also slightly envious! 😁 2026-04-29T10:30:19Z https://yabu.me/nevent1qqswepmdrpekmx03me6y946dhfq6pryx8zu3f4nkt9mfsxg92es0stgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczz96rxk #ThinSectionThursday A garnet monster about to gobble up a shoal of elongate sillimanite crystals. <br/><br/>Garnet-sillimanite quartzite from Western Australia. Field of view 2.5mm wide.<br/><br/>#Geology #Microscopy #Metamorphic<br/> <img src="https://media.mastodon.scot/media_attachments/files/116/453/526/507/522/997/original/86390afb2049f234.png"> <br/> 2026-04-23T10:30:04Z https://yabu.me/nevent1qqsxvhc6uu26a29p4xt3nazjgajqxvmycfawn0d5s8q2606ys55yugqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczurc3vp In reply to <a href='/nevent1qqsq7gu6jj3tmhvc0lx6n9xpf8j29uz8e6laeepvl9ecp4chy2dv39qgc0v5v'>nevent1q…0v5v</a><br/>_________________________<br/><br/>Nice thread! <br/><br/>At first sight the feldspars look like they&#39;re boringly simple, but are actually wildly complex. To mis-quote Paul Ribbe, &#34;there will always be the need for another paper about feldspars&#34; 😁 <br/><br/>Just found this 2009 paper by computer scientists on rendering labradorescence in computer graphics. Their perspective is interesting/amusing: they concentrate on a lot of stuff most mineralogists gloss over AND create a labradorite biplane! 👏 🤓 <br/><br/><a href="https://www.cg.tuwien.ac.at/research/publications/2009/weidlich_2009_REL/weidlich_2009_REL-.pdf">https://www.cg.tuwien.ac.at/research/publications/2009/weidlich_2009_REL/weidlich_2009_REL-.pdf</a><br/> <img src="https://media.mastodon.scot/media_attachments/files/116/384/336/262/904/083/original/1bfb35619d233cee.png"> <br/> 2026-04-11T05:18:10Z https://yabu.me/nevent1qqsvu8zn4lk4p8ym3lsljgeqk4y4pr4emlu7e74v640h6lngxcjcedgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz7lzn7t #ThinSectionThursday 🔥 Hot off the microscope this morning! 🤓 This may look dull, but the big clear (grey) grain with faint WSW-ENE parallel lines, on the right hand side of the image is a shocked quartz (produced by a meteorite impact).<br/><br/>The smaller greenish (orange) grain to the left is epidote. All the fragmental grains here been cemented together by turbid brown albite. From the enigmatic Stac Fada unit, (Proterozoic), in NW Scotland. <br/><br/>More info in Alt text. <br/> <br/>#Geology #StacFada #Impact<br/> <img src="https://media.mastodon.scot/media_attachments/files/116/334/301/519/671/557/original/5eeee8760ea64116.png"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/116/334/327/239/440/696/original/09bb059bdcd2be3c.png"> <br/> 2026-04-02T09:18:01Z https://yabu.me/nevent1qqswet2zemrtu0vdfdy02u5lv5rl9cklumw2n2kjxlxs0gapt2tqwrszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczk099ym In reply to <a href='/nevent1qqsyyp3m82up9cpgmfwl53z8f4knpy423zzpj6vxehw70k5ushu2l0sntzdpr'>nevent1q…zdpr</a><br/>_________________________<br/><br/>Yeah 🤮 2026-02-05T11:28:11Z https://yabu.me/nevent1qqsd5lxgugp3k0z7ep45quqqcnt8quly0jkcelusengu84k336yn6xszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczr6z24t In reply to <a href='/nevent1qqsf9za7u9xz5d0z8lh02mdp3cqx5pl0p7f5l8hxvsml6qdtlx2exxq6nn7a7'>nevent1q…n7a7</a><br/>_________________________<br/><br/>I don&#39;t dispute the horrors of what Israel is doing, but that occidental observer is one hell of a dodgy looking website: &#34;white identity interests and culture&#34;. 😬 🧐 2026-02-05T11:13:18Z https://yabu.me/nevent1qqsfkhjludlf77ay7aay2pv24ak7rsu6t8pttukdwpxzn6j7wt0cpvgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz9tfevx #SilentSunday I normally prefer my rocks without surface biota. But this boulder looks beautiful with its lichened sides and roof of moss. Met with last week, near Tir Fhearagain in the Ross of Mull.<br/><br/>#Mosstodon #Lichen<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/995/905/070/259/168/original/fbab39450e087438.png"> <br/> 2026-02-01T14:48:31Z https://yabu.me/nevent1qqs2mm4q7x3hc06zwlhqsvx24alccg3sjl9thrxunahlqnpr944mhmszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz025mu6 In reply to <a href='/nevent1qqs9s3p95dhddjy9dfwvuqp26qtmrudedxuyfm6ptwmz44e2n473umg23pswy'>nevent1q…pswy</a><br/>_________________________<br/><br/>It&#39;s just power and influence. Lots of good places will be lost. The usual suspects will go from strength to strength. ☹️ 2026-01-03T19:09:05Z https://yabu.me/nevent1qqstjpg00qcn55swalggzq0xeukhllg2sr0zq9ttc0derme49n8ak7qzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczwy8pur In reply to <a href='/nevent1qqsydr4kz3ne8z5r64397ag2geyqexp6k8q2dfwuj9vnldqljr7g03g5cr20w'>nevent1q…r20w</a><br/>_________________________<br/><br/>Agreed - a wild, wild bit of surface misbehaviour, but doesn&#39;t look like what I&#39;d call a sinkhole.. 2025-12-22T16:32:24Z https://yabu.me/nevent1qqsf77c3a30dzae5sax238u38xhu42s2gdyl0asjmqucpz8l00vyrjczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczuaj62f In reply to <a href='/nevent1qqsvt7k0n93twewn08r39heymyzk2zyhwalswva86a8vkgd3c3g8c6qvg73lq'>nevent1q…73lq</a><br/>_________________________<br/><br/>Artifical caves!!?? We need to know more...🙏 2025-12-21T15:58:21Z https://yabu.me/nevent1qqsqmygsctaf520ackkx4cs4jrh0ls7que4anz9mavqnp2prq38kafczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz6fjlhf Some fabulous decoration in last nights Christmas Tractor Run round Fionnphort and Bunessan 😊 🤩 🚜 🎅 Here are four of the best - the train won first prize. #Tractor #Lights #Mull<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/753/036/526/796/819/original/dfd0f07a91c3d970.jpg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/115/753/036/996/449/461/original/f243eb2bb257cfdd.jpg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/115/753/037/247/289/677/original/0538acb1c3505974.jpg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/115/753/037/731/490/115/original/6dbf08daacc20ff7.jpg"> <br/> 2025-12-20T17:26:30Z https://yabu.me/nevent1qqszrdqjsjnnfnk77vwawtuhwamnru3k4mm4dmjtfq532yyj5z0ypzgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczz8pkqk In reply to <a href='/nevent1qqszw8etn9ger5krsnx47pl250ekprzz4evmrs8tjj2z2p5rjuwly4swtc8x8'>nevent1q…c8x8</a><br/>_________________________<br/><br/>😂 but also 😭 2025-12-20T15:06:29Z https://yabu.me/nevent1qqsgm8g30qgwemm3rh6uu2hpyyv3geu46uqg7sf8u0dt4y7ncujwupgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz2w7w28 In reply to <a href='/nevent1qqsz7hnk37hracxr2pps4hdrelqhygldjz2l74zr85wx488ufcnvhxc7lccrj'>nevent1q…ccrj</a><br/>_________________________<br/><br/>Interesting. Classy use of Latin too: &#34;...terminus post quem...&#34; 🤓 I like this, although I wouldn&#39;t have understood it without the English translation 😁 2025-12-19T10:42:37Z https://yabu.me/nevent1qqsrrr9sh0vf3dxmjcue5jsr543x3sjl9uchlulx65nts2n8v3v2plqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczh40y6k In reply to <a href='/nevent1qqsfwre3xj4rez9ssdezvu9j0g075w4v8xsny9n9ka3gkjxk9uff2us0d98ev'>nevent1q…98ev</a><br/>_________________________<br/><br/>👏 2025-12-03T14:16:57Z https://yabu.me/nevent1qqs8646y79z7whgmvtec9j87k7v7nk7eu2yx3094mp99tz2r4kg9a8czyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz2hz48h #ThinSectionThursday Here&#39;s a volcanic rock done right 🤩 🥰 This is a trachyte from the Canary Islands. with a gloriously<br/>diverse pheno(?)cryst assemblage: K-feldspar, nepheline, titanite, zircon, apatite, clinopyroxene AND amphibole (+opaque oxides). Field of view about 2mm wide. <br/><br/>#Geology #Microscopy #Mineralogy #igneousPetrology<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/621/291/177/738/075/original/72c74f583d9c7fb1.jpeg"> <br/> 2025-11-27T11:04:09Z https://yabu.me/nevent1qqs9u8hnz2w5jpnjny2yh0an9fju9v8apfsf6h6lrc5at74l75rfr9szyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczs5u5jc I&#39;ve just dicovered this amazing website about tesselated materials in nature (thanks <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub12cuzzqzv8e8y7na77a9zv47mx2v6pec60qs5h7takzmv5p0mw0fsmgd38p" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Greg Egan</span> (<span class="italic">npub12cu…d38p</span>)</a></span> 😊 🙏 )<br/><br/><a href="https://tessellated-materials.mpikg.mpg.de/collection">https://tessellated-materials.mpikg.mpg.de/collection</a><br/><br/>A lot of pals at Glasgow did work in biomineralization. In 2017 there was a residency + exhibition with the artist Rachel Duckhouse, which I think was one of the best such things I&#39;ve ever been involved with 😊 🤓 🤩. <br/><br/>Lots of beautiful stuff on Rachel&#39;s website here:<br/><br/><a href="https://www.rachelduckhouse.co.uk/shell-meets-bone">https://www.rachelduckhouse.co.uk/shell-meets-bone</a><br/><br/>#Geology #Mineralogy #Art #Biomineralization #Tesselation #ShellMeetsBone<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/587/500/971/175/839/original/50374e9186a90cb5.png"> <br/> 2025-11-21T11:46:01Z https://yabu.me/nevent1qqsv640awqmlcvawwf6pagr9wz57n573m90xetz8cl4qjnwllte094szyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczfy9ndg In reply to <a href='/nevent1qqstngtehy5hvwf0wufjj9p4d5hn6n8g2mc9gtcr94cqvy758er48mq3v9g6q'>nevent1q…9g6q</a><br/>_________________________<br/><br/>Thinking about sea level boggles my mind. The perpetual interplay between local isostasy/tectonics and global water volume is 😵‍💫, even without gravity effects and tides. 😱 2025-11-17T08:55:07Z https://yabu.me/nevent1qqsdamy9yv7470p6a6kd9xmh3lcmapwfhqukdftuh5dylr8fdr7psfgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczkusdnd #DogWalkingGeology It&#39;s Saturday and the shiny schist is sparkling in the sun. The shine is due to lots of coarse muscovite mica flakes, all lying flat like wee mirrors. <br/><br/>This lovely, undulating surface was exposed a few years back when excavating a site for a house at Uisken on Mull. Luckily, the house has not yet been built. <br/><br/>#Geology #Mull<br/><br/>(NB Spud is not visible in this picture taken 30 mins ago, but he&#39;s there (honest)😏 )<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/553/527/993/417/039/original/260f38b3d311353e.jpg"> <br/> 2025-11-15T11:46:53Z https://yabu.me/nevent1qqsxylj07mmj4y8vwpd75mdexs4uer7rxp9ahkj7uj8e9gf54zdl5uczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczcn0ek2 #ThinSectionThursday A beautiful low-grade metamorphic rock from the southern Highlands today: the rock consists of large clear (grey/white) porphyroblasts of untwinned albite set in a foliated matrix of green (very dark) flakes of chlorite, and clear flakes (rainbow colours) of muscovite. Field of view about 2mm across. #Geology #Microscopy <br/><br/>See Alt text for more info.<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/542/286/643/580/126/original/cffc29b8258515cb.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/115/542/287/111/329/994/original/0a440feac473103e.jpeg"> <br/> 2025-11-13T12:10:17Z https://yabu.me/nevent1qqstrt5v46c5zf3hwpg6wuljgkafxgkyryasrmclrc2h390hhkjkhqczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz2u8dxq In reply to <a href='/nevent1qqsxcuaxjvnz9glr877kwwvmmr7x74s452xw3a3n434w933am0rumgctml4qh'>nevent1q…l4qh</a><br/>_________________________<br/><br/>By coincidence, two days ago, I was speaking to Hugh MacTavish, who has made pots at the Argyll Pottery for 40 years. He mentioned that he needs eyes &amp; hands to keep going. But he also mentioned back problems as a potential disaster for potters like him, who throw all their pots. He&#39;s doing fine on all fronts for now. 😊 2025-11-10T18:58:00Z https://yabu.me/nevent1qqs2rvlnrfjcf0dgaw7djnruk8sqpxfyes4k3rn2pq0729u9098dsugzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczrw04hj In reply to <a href='/nevent1qqs0z3red6l7apsfeq8vhpuqp9vu9fnyvffj9cvuy3j6hnpgy3np98smgf6kv'>nevent1q…f6kv</a><br/>_________________________<br/><br/>tendrils!!!! 2025-11-03T16:27:08Z https://yabu.me/nevent1qqs2rvkjwnla8f9wrgg2mcn6vhsyr2uc8hst45z0p5ge89ygsjdt6wczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczpfuxdm In reply to <a href='/nevent1qqsrf89sdykgn4yfx4yhn44kzjwupwfsfmsjwq9wuh7lz7z2c657tzsn3tvp5'>nevent1q…tvp5</a><br/>_________________________<br/><br/>. I thought 500 hectares seemed quite small, and would be problematic for many farms. But this interesting doc suggests prob not. Maps + size data on Scottish farms here: here:<a href="https://www.gov.scot/publications/economic-report-scottish-agriculture-2016/pages/8/">https://www.gov.scot/publications/economic-report-scottish-agriculture-2016/pages/8/</a> 2025-10-09T08:58:55Z https://yabu.me/nevent1qqsdf0qcg66kyrlwazrlannag86zhwyj2hwsjlrd3cjegnj7sfuur5qzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz25eg6y In reply to <a href='/nevent1qqs2s5wexd80tmr00yzvtjm542c8zt3hq6798w2u3hx0m6n7ehxkfcs8exz83'>nevent1q…xz83</a><br/>_________________________<br/><br/>The C21st Icelandic tradition of financial chicanery is so surprising to most of the non-Icelandic world... 😬 2025-09-29T09:53:15Z https://yabu.me/nevent1qqsgrq3z7twstgkwsdyt8ggnrwkgdq55gdkf8pw5cg8ykd7r8r3rh0qzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcze9rcj9 Scottish meteorite!<br/><br/>Pals at Glasgow Uni have identified area between Loch Treig and Loch Ericht as the likely fall zone. A huge area of mountainous ground. Scotland must be one of the worst places to recover meteorite falls - lots of vegetation, especially bogs, big areas with no population, wet weather etc. The last one recovered was in 1917, although dozens of sizable ones must have fallen since. <br/><br/><a href="https://news.stv.tv/highlands-islands/hillwalkers-and-munro-baggers-called-to-help-track-down-scotlands-first-meteorite-in-100-years">https://news.stv.tv/highlands-islands/hillwalkers-and-munro-baggers-called-to-help-track-down-scotlands-first-meteorite-in-100-years</a><br/><br/> <a href="https://www.bbc.co.uk/news/articles/cy4rmkvr430o">https://www.bbc.co.uk/news/articles/cy4rmkvr430o</a><br/><br/>#NaeChance #Meteorite #Scotland 2025-09-12T10:37:46Z https://yabu.me/nevent1qqsfglm6z3rmzgungf8576np4763yre0rfy96sgxyrzmxkxjzltr8dszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz6kztfj Very pleased to have spotted this anonymous lifting stone at the wonderful Glengarry community hall/cafe/ heritage centre. It turns out to be the legendary 132kg Invergarry stone. The roundness and weight means it&#39;s immovable by mortals (eg me 😃), although heroic videos are available online. #LiftingStones #Scotland<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/179/177/051/070/317/original/614924b6ac8eec52.jpg"> <br/> 2025-09-10T09:03:59Z https://yabu.me/nevent1qqsdul0zxtc3l26u8wf34ff05w5eskhhw5pljzyzhy2m8mfzlspj0lgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczckl5sk #MinCup25 Two fine minerals facing off in today&#39;s bout: the exotic, chemically and structurally intriguing perovskite vs the ubiquitous chameleon that is calcite. <br/><br/><a href="https://mastodon.scot/deck/<span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span>/115143274766404499">https://mastodon.scot/deck/<span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span>/115143274766404499</a><br/><br/>This year I&#39;m going for #calcite Among other things, it makes for some completely bonkers, unusably fragile gemstones. like this one, which turns a ray of light entering the stone into 8 rays leaving the stone. More here: <a href="https://www.gia.edu/gems-gemology/winter-1984-calcite-hurlbut">https://www.gia.edu/gems-gemology/winter-1984-calcite-hurlbut</a> (with free link to full pdf)<br/><br/>#Geology #Gemstones #Optics<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/145/580/863/003/486/original/023a1e34d756d234.png"> <br/> 2025-09-04T10:45:49Z https://yabu.me/nevent1qqsf3zmqemmrj8lqag7js7f9nnyze0p8pk7z2h6g2hzwfc2q3h0kn6gzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz7sgex9 Yesterday a friend showed me this beautiful potato which was owned by her great grandfather, who had been a farmer in East Lothian. The miracle potato had survived, and been passed down the generations. 🤩😋 <br/><br/>See Alt text for the #SecretOfThePotato<br/><br/>#Buntàta #Potato #Tattie<br/> <img src="https://media.mastodon.scot/media_attachments/files/115/088/293/755/832/349/original/63f377928d3cb617.jpg"> <br/> 2025-08-25T07:53:48Z https://yabu.me/nevent1qqsfkzh67pmm7mmmm77pd9xuu5k02nmhf99yh25sg6qad6xvc49flmczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczqwtw0u Here&#39;s a wee thread of some favourite highlights from the Industrial/Horticultural tent at this year&#39;s Bunessan Show on Friday: the fiercely contested &#34;bowl containing approx. 1l of homemade compost&#34; category: 🧵 /1<br/>#BunessanShow #Mull #Compost<br/> <img src="https://media.mastodon.scot/media_attachments/files/114/960/352/546/311/122/original/a85053a81e773e2e.jpg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/114/960/352/546/959/852/original/a98ecf7e56b86d8f.jpg"> <br/> 2025-08-02T21:26:30Z https://yabu.me/nevent1qqsfgajjg0rzqe4zusgytdr5askh523vf57rkl3zn6wenaklgr9tkdgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczdfnv27 In reply to <a href='/nevent1qqsxgrngpllye6f68xzq8apsqvvf4nltkpuxd484fyftwflzz6df2wqg35pqd'>nevent1q…5pqd</a><br/>_________________________<br/><br/>😭😭😭🤬 2025-07-28T06:04:52Z https://yabu.me/nevent1qqsrp2700dnx5jwp6fzgxxs3nr4pc2vq6amfcnee46zskwmqkk6r5tgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz6nxmee Round pebbles are surprisingly rare, as <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub19sgllm2rq70ccuq0gvem3ljgc4h8g2df4snk2s9k3ywxmzaxaazq47czpg" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Bob Downie</span> (<span class="italic">npub19sg…czpg</span>)</a></span> has noted... Here&#39;s a large and very spherical pebble (strictly a cobble 🤓 ) which I found a few years ago at Kilfinichen Bay on Mull. Not quite my roundest natural stone, but it gets bonus points for large size I think. #Geology #RoundestPebble<br/> <img src="https://media.mastodon.scot/media_attachments/files/114/920/507/258/147/297/original/f8e987db08314130.png"> <br/> 2025-07-26T16:38:06Z https://yabu.me/nevent1qqsv52pzdc2pnhlucqhwf3r96dnke38824g34f599ck8eq4ph522dyqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczk9kzlp #SpotTheCar Back from wee visit to visit relatives in burning heat of SW England. Here&#39;s some #Rewilding in the expensive suburbs of Portishead. This entire house and garden is similarly engulfed. I don&#39;t know the story behind this, and it&#39;s probably sad, but it also seems a bit cheering that plants and animals have been able to take over so quickly... 🌱 🌿 🐝<br/> <img src="https://media.mastodon.scot/media_attachments/files/114/867/497/259/213/091/original/9f49da0bcb21ff2a.png"> <br/> 2025-07-17T08:03:22Z https://yabu.me/nevent1qqsfuea9e74z04mrl3mamun4pm2fcyjyh4v4fua60cxe2jre4vndf6gzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczz2asyp #ThinSectionThursday Here&#39;s a lovely porphyritic camptonite (probably Permian) from North Hoxa, Orkney, seen in plane-polarized light. The large brown crystal is kaersutitic amphibole, the smaller clear crystal near the bottom of the photo is olivine, &amp; the large greyish crystal on the right is clinopyroxene (with a hole in it!). These phenocrysts sit in a finer-grained groundmass of amphibole, clinopyroxene, magnetite &amp; analcime. The field of view is about 2mm wide. #Geology #Microscopy #Orkney<br/> <img src="https://media.mastodon.scot/media_attachments/files/114/629/890/178/625/641/original/e47cadb4048152ee.jpg"> <br/> 2025-06-05T08:54:49Z https://yabu.me/nevent1qqstdjqkh9aqksn0u0m0wr9m9qa3l8f0fywcp7x9yk70sj7x5twws2qzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczg3e6y5 Just in time for a slightly late #ThinSectionThursday! Here&#39;s some fabulous piemontite: a manganese epidote mineral that shows amazing pink-yellow-plum pleochroic colour change. The two images below show the same grains under plane polarized light, but rotated through 90 degrees . The clear mineral is quartz, and there are also some large flakes of very pale pink Mn-rich muscovite mica. This sample is from near Tongue, in Sutherland. #Geology #Metamorphic<br/> <img src="https://media.mastodon.scot/media_attachments/files/114/513/942/588/449/341/original/3b8e36a1388f8c70.jpg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/114/513/942/586/051/755/original/61b11788f01795b0.jpg"> <br/> 2025-05-15T21:27:05Z https://yabu.me/nevent1qqstyc00zre2cgj7pcefyhesvcgatrmsp9zyzjx844e8x2yv3pehlpqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczdhme4s In reply to <a href='/nevent1qqsrmf67sy0a8prhzlxnpzcmdlku0yqzcv8l8afx8u3n7u0v9lm720qysvsv9'>nevent1q…vsv9</a><br/>_________________________<br/><br/>🤯 🤣 WTF?? 2024-12-17T10:56:17Z https://yabu.me/nevent1qqsdvqgzpn3tm4tzllmm8khtr3xvqw4v5dgmvzwxkym5mkwlrcfnn8czyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczgk20n0 In reply to <a href='/nevent1qqsvskt3c4rhjt9jxxas3vl3rgpjpnr486ukcvrrkcxnc4kva94y0gsnc4wzj'>nevent1q…4wzj</a><br/>_________________________<br/><br/>I love the phrase &#34;... will likely take some heat off the beleaguered utensils.&#34; 😁 2024-12-17T10:25:36Z https://yabu.me/nevent1qqsqmycm9dpuggmjy3wpmymecqfc2z3mus5d4j7n8z3hltcm66880ngzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczg2yssk In reply to <a href='/nevent1qqsrkfvqs8q4gdem7wqvlsjp5tqleqm6zl8fxv97nnrkdcehxwuwtmqa45mpl'>nevent1q…5mpl</a><br/>_________________________<br/><br/>😭🤬🤬 2024-12-11T14:15:15Z https://yabu.me/nevent1qqsrq7zrudhn4rdevcnhjptg6r3ejdj89tht2d7d9plf09lnl0yd05gzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz6u5ykq In reply to <a href='/nevent1qqsdzgg2qu95h6c39tprtkl8l95hptlmyuqc2ycs2k4ucdu3wa9dgyg85x0eg'>nevent1q…x0eg</a><br/>_________________________<br/><br/>😁😊 2024-11-08T16:32:07Z https://yabu.me/nevent1qqs2pwe9ygpl7ylzfqp4epe0h47gkulgg8gjxe8shdkmhnzjxksk3fczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczt792u6 In reply to <a href='/nevent1qqsqynq2rrnxwcjqum0np5khgw46npj2zdd5cr8c5h2zpdkf69wmd2cvn85w6'>nevent1q…85w6</a><br/>_________________________<br/><br/>😁 2024-11-03T08:05:12Z https://yabu.me/nevent1qqsyczfjpzc0fz2leyvk567yvu267hdcljqsk0d0feygertzxcunduczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczva4mlv In reply to <a href='/nevent1qqs0x3pf74egsnxfmmhvjyejz5n789dm65jqntmkv6kvk2r7tew5zhqcxhrfw'>nevent1q…hrfw</a><br/>_________________________<br/><br/>🤓 Microbially-induced calcite precipitation fuelled by urea is a well known lab effect - is it rare in nature, and why did it happen in this place? 🙏 2024-11-03T07:50:49Z https://yabu.me/nevent1qqsyxln5nkckwf80xgke8qg6cmw3034s4qc7dggqakse97g0v6ng4vszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczqucxth This brick collection + brick archives put together by Mark is a superb national and international resource for social and industrial history. Scottish bricks went all over the world, and thanks to him, styles and makers marks can be precisely traced and dated. It is our national brick collection and National Museums Scotland should give it a permanent home. <a href="https://www.bbc.co.uk/news/articles/cp3nj7j435ko">https://www.bbc.co.uk/news/articles/cp3nj7j435ko</a> #Bricks #Scotland #IndustrialHistory #Museums 2024-10-31T08:53:42Z https://yabu.me/nevent1qqspa907eps7y3ypl7zgf2dqgfhwzx3dpajcpad78h6tvwpheel3j3czyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczn48d86 In reply to <a href='/nevent1qqsfyejqsyg6m2gaxu3c986untqgja0v0jxpf4dgj6u6sydh808aq9cc77gza'>nevent1q…7gza</a><br/>_________________________<br/><br/>Strong agree. I actually think that CCS may well have a small role to play (eg for waste incineration and cement plant CO2 near old N Sea pipeline infrastucture) - but this just looks like flinging our money at the the usual suspects so that they can spend another decade avoiding other, much more effective actions. Bah! 🤬 😭 2024-10-11T09:52:54Z https://yabu.me/nevent1qqs2ssjfzvh3jwyznwtmh88j9ep724unq0ue4htst4apkkph50w444szyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz94vt66 I knew that Scottish county boundaries have been very variable over the years, but I never knew until today that in the mid C19th Argyll used to go as far north as Loch Quoich, thanks to Kilmallie parish 🤯. Thanks to the fabulous NLS digital map website 🤩 🥰 #Maps #NLS #Argyll #AdministrativeBoundaries #Scotland<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/282/112/216/343/304/original/e10056153fbb3b70.png"> <br/> 2024-10-10T08:16:46Z https://yabu.me/nevent1qqsq4gzl77dfpdugs4uu2hdzv8muxxd82gsugpc2g9a2vlfms387g4szyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczw0y5em In reply to <a href='/nevent1qqsf2hmvte4hvpex706v6ht2f4pf0ag9ck27evg7xz5cldsr0tsu27q09xzve'>nevent1q…xzve</a><br/>_________________________<br/><br/>👏🤩 2024-10-06T10:51:37Z https://yabu.me/nevent1qqsycd2k3waw4txmfyndmd7v2lghsgwmx3gmv5uy8z272dkms005yrgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczfgfql2 In reply to <a href='/nevent1qqsy7fwcyz49038u084pdhgt3ds00p7767nps0and6wntx0gtded4vssdfwzd'>nevent1q…fwzd</a><br/>_________________________<br/><br/>☹️ 2024-10-04T06:57:55Z https://yabu.me/nevent1qqs2wzzmk05qltzhmd6m8n4z20d9tytv7j3pzz5tgp0p5r9fr5yy3jqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczvxacvd #MinCup24 kyanite vs rhodochrosite<br/><br/>Vote #kyanite! The glorious blue harbinger of metamorphism done right: high pressure, and aluminous chemisty = beauty + lots of geo-information 🤩 🥰 🤓 <br/><br/>Here&#39;s some Mull kyanite, together with it&#39;s pink cousin andalusite, in an outcrop at Ardalanish in Mull - what a rock! 😊 😍 <br/><br/>#Geology #Mineralogy #Metamorphism #Mull #Moine [@MineralCup](<a href="https://mastodon.social/@MineralCup">https://mastodon.social/@MineralCup</a> )<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/232/161/630/456/307/original/e09232df15e2f409.png"> <br/> 2024-10-01T12:32:47Z https://yabu.me/nevent1qqsy3hj6lfxuq3wsr4pedarmtwddc8re4zv3gdrt3jr2cp5hmcpw6ngzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczn0ukec #MinCup24 titanite vs calcite<br/><br/>Calcite is a great mineral, but a terrible gemstone, being soft, brittle and with perfect cleavages. But never mind that - here&#39;s what may be the largest faceted calcite from the British Isles - 28 carats of fragile beauty in the Hunterian museum, Glasgow. Cut from a crystal found in a basalt cavity, near Tobermory, Mull. 🤩😊<br/><br/>#Mineralogy #Geology #Gemstone #Mull <a href="https://www.gla.ac.uk/collections/#/details?irn=15389&amp;catType=C&amp;referrer=/results&amp;q=Calcite+mull">https://www.gla.ac.uk/collections/#/details?irn=15389&amp;catType=C&amp;referrer=/results&amp;q=Calcite+mull</a><br/> <img src="https://media.mastodon.scot/media_attachments/files/113/188/581/718/736/763/original/79b4c3852df5ef0a.jpg"> <br/> 2024-09-23T19:50:59Z https://yabu.me/nevent1qqsx7gpdfn39em6cfck7r4pn4y8xhu4fmxsh767c6kdpke7ghysvcuczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz8xk02u #MinCup24 corundum vs wavellite<br/><br/>This from last year deserves a re-toot as yet another reason to vote for the glorious #Corundum - it makes resilient &amp; resusable lab stuff. 🤓 🤩<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1cxjldzqpgtjgxz67vqshvmrf6rtp8mpfgxdtdrefwf3quxulwf6sxa4k9k" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>David Michael Self</span> (<span class="italic">npub1cxj…4k9k</span>)</a></span> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span><br/> <img src="https://media.mastodon.scot/media_attachments/files/113/158/292/179/344/727/original/e70207061e043888.png"> <br/> 2024-09-18T11:24:52Z https://yabu.me/nevent1qqspc2kdutxhhlfdagnwnwpagqqqq4v5lw68c80v9m57snpt3gh8w8czyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczmahxys #MinCup24 topaz Vs spodumene<br/><br/>This is so difficult.... both wonderful minerals with strange and lovely names. Both associated with the wilder fringes of granite geochemistry. Both fine gemstones... Which to choose??? <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span><br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://media.mastodon.scot/media_attachments/files/113/145/780/156/531/252/original/293cf6d414d5023f.mp4"></video><br/> 2024-09-16T06:20:57Z https://yabu.me/nevent1qqswyvrsl5vksrrp9j8g4egw69jwk0p3gvzkcm2w4vlyhq9u4knn8wczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczzdqt5k #MinCup24 kyanite vs ringwoodite<br/><br/>I&#39;ve never seen ringwoodite, but it&#39;s almost certainly much more abundant on Earth than kyanite. It&#39;s also blue, like kyanite. But on Earth it&#39;s only found hundreds of km down in the mantle. Here&#39;s a nice article #TheDeepestBlue: <a href="https://www.ucl.ac.uk/earth-sciences/news/2019/may/deepest-blue">https://www.ucl.ac.uk/earth-sciences/news/2019/may/deepest-blue</a> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span><br/> <img src="https://media.mastodon.scot/media_attachments/files/113/123/156/558/325/737/original/a62f18beb3cdd26d.jpg"> <br/> 2024-09-12T06:19:16Z https://yabu.me/nevent1qqs0mml42el3u26hlplzyqgdycuh0nx7y8awv768exuceyhp4azkvsszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczc8tvz4 #MinCup24 Quartz vs mercury<br/><br/>Vote quartz! It&#39;s a speciality of our beautiful wee Earth, and it can take on an astonishing range of habits and colours. One of the most amazing is the incredible &#34;ametrine&#34; from the Anahi Mine in Bolivia, where quartz crystals have alternating zones of yellow &#34;citrine&#34; and purple &#34;amethyst&#34;. These specimens from Anahi are in the Hunterian museum in Glasgow. #Geology #Mineralogy #Quartz #Ametrine <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span><br/> <img src="https://media.mastodon.scot/media_attachments/files/113/119/641/008/500/184/original/3d3b8f7cb536cc41.png"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/113/119/641/751/934/540/original/dc0ff59a19204659.png"> <br/> 2024-09-11T15:35:33Z https://yabu.me/nevent1qqsqflcfs5vurasv00tkh07zyyjdym8qx86lwjzj2rn3creupuyvl9czyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczy2yq4r #MinCup24 Quartz vs Mercury<br/><br/>Quartz may seem common to us living on the thin continental crust of our planet, but globally and cosmically it&#39;s rare: we have a lot due to the lucky chance of our wet planet with subduction plate tectonics. It can also be a fabulous gemstone : here&#39;s a lovely Scottish smoky quartz in the collections of the Hunterian museum in Glasgow... Vote quartz! #Geology #Mineralogy #Quartz <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ssgrz9qrq9lkmdlwd7whtc3m7dy4f2v0tka0etfmjegz573q79kqtqswjk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Mineral Cup & Ore Cup</span> (<span class="italic">npub1ssg…swjk</span>)</a></span><br/> <img src="https://media.mastodon.scot/media_attachments/files/113/119/376/018/974/522/original/d7cd249bc0219f54.png"> <br/> 2024-09-11T14:27:57Z https://yabu.me/nevent1qqswewyasg9yn9palpy9g9pymfml43pw3zxd2hzper48gyhed32lkpczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczw4sxms In reply to <a href='/nevent1qqsvv83650ud9up736w8tgquyqtddzzus29svlruayyw9rn26gjedzsz5mg47'>nevent1q…mg47</a><br/>_________________________<br/><br/>They do (back to ca. 1 billion years ago) but normally it&#39;s the underground bits /spores rather than the familiar fruiting &#34;mushroom&#34; structure, although they do occur too: a intorduction here: <a href="https://depositsmag.com/2020/07/25/discovering-the-world-of-fossil-fungi/">https://depositsmag.com/2020/07/25/discovering-the-world-of-fossil-fungi/</a> 2024-09-10T12:02:31Z https://yabu.me/nevent1qqsfextdy84y7y78g4xeess9zgwm7rdwhnfhjg2rdlg8t546pusaaegzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz2s0cr2 In reply to <a href='/nevent1qqsw29l9sesr49hkxjkntyl8xpn96728hy496nwe2y56ujefs8n2qqqvv0vkt'>nevent1q…0vkt</a><br/>_________________________<br/><br/>I thought it might be you too, but it seemed an improbable place to meet! Sorry for being close in the boat - I was just saying hello to John and Janna... 😔 2024-09-08T06:27:38Z https://yabu.me/nevent1qqsv35rwr8r6yzkc8esmtueyqsszsdvjm53cjgp87fypusjlx33tc3gzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczkk3ruh Another sunny day in Mull 🤯 . After meeting 2 nice lots of geologists from Leicester + Innsbruck Universities at Ardalanish this morning, headed off for picnic lunch at the enigmatically-named Eilean an t-Santachaidh (island of covetousness/desire) which is not actually an island, but hard to reach by land. Note the two intrepid sheep taking advantage of low tide to nibble seaweed. Geo info in Alt text. #Mull #Granite #Basalt #Sheep<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/097/300/861/997/403/original/59a4082badfbf9fc.png"> <br/> 2024-09-07T16:59:36Z https://yabu.me/nevent1qqsqjgyjpf8wyjac4vg6tlwha9yzljxffev4zvm994fjpatdntavmlczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczpv736h #MinCup24 Copper vs Perovskite - hard to choose a favourite today!🤔 Meanwhile, here&#39;s a very nice native copper specimen from the Carboniferous basalts of Boyleston Quarry, Barrhead. 🤩 This locality has produced t he finest Scottish copper specimens. This one is about 10 cm long, and in the #Hunterian collections at University of Glasgow... #Geology #Mineralogy<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/073/075/560/469/502/original/492ef370473b856d.png"> <br/> 2024-09-03T10:13:35Z https://yabu.me/nevent1qqsx52w66p4qznswp5f5ml5lp34qnsa80j5fgyzw2zhs75cj6y4k5zqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcz2kjwt4 In reply to <a href='/nevent1qqsp6t03lnc3ne3kjqt0wsp74y07ne5qxkkg3ze9jz2zgl73lmt8lcgypam9g'>nevent1q…am9g</a><br/>_________________________<br/><br/>Him!!! I did not know this - 🤮 🤬 2024-08-29T17:40:54Z https://yabu.me/nevent1qqszcmshncvayru303yc0t9zh0qxhlaqaxf0pg8plea7pqu45m3t2xszyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczugryhv #ThinSectionThursday No fancy minerals in today&#39;s rock, but it does feature clear skeletal plagioclase crystals looking like a wee propeller &amp; a wee hand pointing upwards (or giving the finger?? 😁 ) The rest of the rock is brown glass, with finely dendritic-skeletal magnetite and clinopyroxene. From Scobull, on the Isle of Mull. Field of view 2mm wide. #Geology #Microscopy #quenching #Supersaturation #Mull<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/045/457/314/986/695/original/08697f147de8ba88.jpeg"> <br/> 2024-08-29T13:11:23Z https://yabu.me/nevent1qqsqwdnwar8afzeg9k7zawugngssazuckf7gywv6fuefgwhrzyjt8rgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczh5808u #ThinSectionThursday Beautiful symplectite coronas around pink (black) garnets in this garnet-clinopproxene-amphibole-plagioclase-scapolite gneiss from the Lewisian complex in South Harris. Field of view ca. 2mm wide. #Geology #Metamorphic #Microscopy #Texture<br/> <img src="https://media.mastodon.scot/media_attachments/files/113/004/609/647/074/678/original/70752719d452b779.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/113/004/611/187/022/865/original/145e8dc029b44f2e.jpeg"> <br/> 2024-08-22T08:02:41Z https://yabu.me/nevent1qqs9hsk5ulgtpjdja0rrcd308kdxheuf0zvy8askuc8a3ggm6j6e9ugzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczwxf5hf This is a dismal tale of human and environmental exploitation. 😭🤬 #ScallopDredging <a href="https://www.bbc.co.uk/news/articles/cd9dnk34k41o">https://www.bbc.co.uk/news/articles/cd9dnk34k41o</a> 2024-08-19T06:25:29Z https://yabu.me/nevent1qqs9w28gj945hjh8s9qza0kfkqrallwrv0hpckqc8kf9rmlzfuaddcczyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczn6whcf A day late for this weeks #ThinSectionThursday, here&#39;s some more epidote, this time from highly altered basalt lavas high on Ben More in Mull, viewed under a polarizing microscope. The bright (pale greenish) crystals of epidote are intergrown with grey (clear) fibrous zeolite mineral. Field of view about 2mm wide. See Alt text for more info. #Geology #Microscopy #Mull #Petrography #Mineralogy<br/> <img src="https://media.mastodon.scot/media_attachments/files/112/933/165/445/052/386/original/83f3704bfa815c46.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/112/933/166/287/377/476/original/c4a58a05ca6e1535.jpeg"> <br/> 2024-08-09T17:15:46Z https://yabu.me/nevent1qqsqqs8tczhqqdfgrdulhzdr6ypm2ghurgskl8qdejt0wyf4uq87nxgzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptcztn2lvc #ThinSectionThursday A beautifully zoned epidote crystal with an older brown allanite core in Lewisian gneiss from the summit of Dun I, the highest point on Iona. From the #Hunterian collections in Glasgow. Field of view about 0.5mm across. See Alt text for more... #Geology #Iona #Mull #Lewisian #Microscopy #Mineralogy<br/> <img src="https://media.mastodon.scot/media_attachments/files/112/885/751/835/805/104/original/829e91fad6d861c3.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/112/885/752/655/885/910/original/27cd7257d4a023fe.jpeg"> <br/> 2024-08-01T08:15:22Z https://yabu.me/nevent1qqspglwgrmgtsgpgmk852rg9f3fptjy6prrcln6tcm2zgrwsjrxj7eqzyq6rsygrtgtjwtrzwwc6hu8wmenwyvfq60f54yzd40esx76eeptczs65qgt #ThinSectionThursday 🤩 🤓 A C19th thin section of Scottish agate, using different polarized light techniques, from the Heddle collection in the Hunterian museum. Agate is basically quartz, but has a distinctive micro/nano-structure of tiny elongate, often twisted fibres at right angles to the bands. This section is a bit thicker than modern standard of 30 microns so colours are a bit more intense. FOV ca. 2mm wide. See Alt text for more. #Geology #Microscopy #Agate #Mineralogy<br/> <img src="https://media.mastodon.scot/media_attachments/files/112/846/778/200/521/332/original/890d7e5849652381.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/112/846/783/963/789/415/original/db58eb2bc1605676.jpeg"> <br/> <img src="https://media.mastodon.scot/media_attachments/files/112/846/785/604/871/284/original/adac850261eedf05.jpeg"> <br/> 2024-07-25T11:05:57Z