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Way to join
#ThinSectionThursday with a bang. This is a lovely thin section! -
I finally have something to offer for
#ThinSectionThursday! A crenulated mica schist from the western Canadian Rockies, near Valemount, BC. Do rocks get much more beautiful? 5x mag., XPL. pic.twitter.com/YhAbOn1aeq
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#thinsectionthursday SEM image of fecal pellet
(top image, white dashed outline) filled with coccolithophore debris (B, lower image close-up) in Cretaceous mudstone. Red arrow highlights porosity preserved in coccoliths.
by Robin Fults, Reservoirs Research Group, @UofUGGpic.twitter.com/Qe7uZEqRAT
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This
#ThinSectionThursday, I've found a beautifully foliated schist! Hornblende-Kyanite-Garnet Mica Schist, Saint-Gotthard massif, Switzerland. fov = 2mm, XPL. pic.twitter.com/pH0VCdursy
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#Shishaldin tephra from Jan 7, 2020 (collected by Cold Bay@AlaskaDOTPF) Dk gray crystals = plagioclase & lt gray = olivine. This grain has a clean glassy matrix w/ rounded vesicles (gas bubbles). Image by F Eberhardt,@USGSVolcanoes , w/ a JEOL 6510LV SEM.#thinsectionThursday pic.twitter.com/NDtD7SDzam
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#ThinSectionThursday Zoned Allanite in the volcanic rocks from Mercaderes, Colombia#volcano#minerals#crystals#geology#rockspic.twitter.com/fRZ0FjLDDp
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Lagi-lagi
#ThinSectionThursday sebelum ganti hari. Clue : hand-picked masih lapangan yang gak jauh dari kampus. pic.twitter.com/Bex7tR5xew
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Here is a very cute garnet from a Himalayan leucogranite
#ThinSectionThursday pic.twitter.com/cEcjikmseq
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Harking back to looking at some trachydacites from my MSc today. I didn't realise then just how beautiful plagioclase is.
#ThinSectionThursday pic.twitter.com/X5P7DYH5gO
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It's
#ThinSectionThursday Check out this thin section from our Lake Superior Legacy Collection! More can be found at: https://data.wgnhs.wisc.edu/lake-superior-legacy/thin-sections.html … Do you have any cool thin section pictures? Reply with them below!pic.twitter.com/2FsWUvz2PP
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Nanogranites in a zircon from the Kerala Khondalites, maybe...
@micROCKScopica#ThinSectionThursday pic.twitter.com/Slg8s9GH12
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#ThinSectionThursday Berlin (Prussian) blue interference colours might indicate an iron-rich chlorite . FOV 1mm, sample from the metamorphic basement of Sulawesi, Indonesia pic.twitter.com/9ghY7mpkAY
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For your pleasure on
#ThinSectionThursday.... a chondrule that has been half ablated on entry through Earth’s atmosphere. Fusion crust visible! Phroar. pic.twitter.com/UjmxHuCd2B
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It looked way cooler before hand-grinding down to ~30μm. Minerals that are thicker have higher birefringence, hence the bright colours in all the quartz and feldspar.
#ThinSectionThursday pic.twitter.com/zMRcp2Ezko
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I present my very first thin section - a Palaeogene granite from the Mourne Mountains. Quartz, perthitic feldspar, biotite, opaques, sphene, and some tiny zircons! It's been a long time since I got this excited looking at a thin section of granite!
#ThinSectionThursday pic.twitter.com/pFk7SdNieZ
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@OU_EEE This is my#ThinSectionThursday and here is a muscovite, biotite, chlorite, staurolite, garnet schist from the Himalayas. The staurolite isn't a happy bunny and looks like it is breaking down.#geology#staurolite#mica#schist#sciencepic.twitter.com/IqWHNnfKo9
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#ThinSectionThursday Yosemite in the@Hunterian collections! Accessories in the El Capitan granodiorite: bright zircon, with brownish titanite, greenish altered biotite, and colourless-grey quartz. FOV ca. 0.5mm wide.pic.twitter.com/5tFv5Ce97d
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Not
#ThinSectionThursday but I sliced it 2 mins ago. Altered greywacke cut by early quartz veining cut by calcite + barite (+other tiny things). Collected from New Glencrieff mine dump by@FaithfullJohn at the weekend.pic.twitter.com/yCJdAqf0V1
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It's
#ThinSectionThursday! Here's a section containing large benthic forams from Wreck Reef,#GreatBarrierReef.pic.twitter.com/2EpiFFnABv
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