Rezultati pretraživanja
  1. 31. sij

    Colorful patterns in secondary after in a sample collected from with last summer. Polarizing microscope image with crossed polars, image width ~2 mm. – mjesto: Kumpulan kampus

  2. 27. pro 2019.

    Some people say granite is boring. Don't listen to those naysayers - just look at these large white feldspars🤪.

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  3. A sample from the - transition near that perfectly illustrates the reaction of + -> + (). Sample from .

  4. 27. stu 2019.

    Some Palaeoproterozoic meta-anothosite from Lingreabhagh, South Harris, Outer Hebrides, Scotland

  5. 3. lis 2019.

    Finally, we have , who still can’t believe when a single match broke 4000 votes (then today’s broke 6000)! If she had her way, we’d be celebrating ’s victory today.

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  6. 3. lis 2019.

    Despite claiming to know nothing about minerals, handled most of the starts & ends of polls. Her fav moment was that first potential of a sudden death round between & showing no mineral was safe, & she still wishes made it further.

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  7. 27. ruj 2019.

    Round 3 begins and leaves us 💔 - in form here 🐶🐶

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  8. 27. ruj 2019.

    How's this for perfect cleavage?!?! It was a fine slice, but got the edge over in the first of the quarter final match-ups. Plenty more excitement to come!

  9. 27. ruj 2019.

    After 3,357 votes, squeaked in with a narrow victory over and will continue on in .

    Updated bracket
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  10. 26. ruj 2019.

    Whole rocks made up of ! Rocks that cover most of the Moon's surface! And rocks that Apollo astronauts brought back for us to study! You know you want to vote . I'm looking at all of you who have yet to vote .

  11. 26. ruj 2019.

    on Mars ! Igneous clast (called Harrison, after Harrison Schmitt, Apollo geologist 🔨) in conglomerate in Gale crater, with feldspar crystals. Merged image (15cm) from Curiosity’s Mastcam & high-res ChemCam pics. (Photo: NASA /JPL-Caltech / IAS / MSSS).

  12. 26. ruj 2019.
  13. 26. ruj 2019.
    Odgovor korisniku/ci

    is an important rock-forming mineral in many metamorphic rocks. Here's a beautifully twinned crystal in a high-grade metamorphic rock with garnet (isotropic), clinopyroxene and amphibole. Vote !

  14. 19. ruj 2019.

    This is the first year I've been on twitter and therefore, of . I had no idea I felt so strongly about certain minerals until now 😂 or how invested I would get in wanting my chosen to win. (Ps Vote today).

  15. 19. ruj 2019.

    I’m ambivalent to both and but since I have a pretty video of some average zoning in plag from the I’m coming off the fence

  16. 19. ruj 2019.
    Odgovor korisniku/ci

    Vote . Look at these examples from NE Scotland - not content with recording much of the magmatic crystallisation history they also record the expansive forces involved during subsolidus serpentinisation of olivine. Look at those radiating bundles of brittle fractures.

  17. 19. ruj 2019.

    Do you love the moon? Did you know that the reason it reflects the sun's light so magnificently is because the lunar highlands are made of mostly ! Vote for a shiny Moon! Vote (I took this pic on Fri through awesome telescope)

  18. 19. ruj 2019.
    Odgovor korisniku/ci

    I feel like this should be the final... I've never bee so tense about a twitter poll before! Here are the contenders and peacefully coexisting in the Lewisian Gneiss of Iona for (fov c.5mm)

  19. 19. ruj 2019.

    *sounds* nice, but you can actually *see* shining silver in the nighttime sky. It helps tug our oceans lifting ships to sail the stormy seas. It inspires poets and lovers. It’s movements mark the months of our lives. Remember this as you vote 😅

  20. Come on team ! Labradorite, Sunstone, Moonstone, the MOON! MARS! Garnet had its time in the light! Let's go Anorthite!

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