#MineralCup

GeologistsCatGeologistsCat
2024-09-28

Today at . We are in the semifinals & my favourit is the /#disthene-the mineral of 2 hardnesses-or in cat-of the 2 softnesses. II the c-axis {001} it has a 5 & perpendicular to it a 7 on the .
Go 🐾

Simba is mimicking the mineral disthen / kyanite that has different hardnesses depending on crystallographic axis
GeologistsCatGeologistsCat
2024-09-13

Today: dear team. I sent you greetings from . Look whom I have met today during my . A very young , it formed last night, is greeting you😻 It hopes also to become again part of the in the future 😻

Simbalito sitting in an outcrop with fresh icicles
2024-09-11

A quartz-filled geode from Mont Lyall, Gaspe Peninsula, Quebec. These form in Devonian volcanics of the Chic-Choc mountains, when hot water percolates through cavities. The quarry is a pick-your-own-nodules, with a service to saw them open -no guarantees!
#Quartz #MinCup24 #MineralCup #Quebec #Geode #Geology

A cavity within a pale brown volcanic rock has been filled with the mineral quartz; the center of the cavity is still open, surrounded by faceted quartz crystals.
2024-09-08

Opaque #spinel is the main aluminum-bearing mineral in the Earth's upper mantle. Here surrounded by pale olivine brown orthopyroxene and green clinopyroxene.

#MinCup24 #MineralCup #Mantle

A thick section of a mantle xenolith showing the color-coded minerals of the upper mantle: opaque spinel, pale olivine, brown orthopyroxene, and green clinopyroxene. field of view ~10mm
Now @christinkallama@hcommonschristinkallama
2024-09-06
Now @christinkallama@hcommonschristinkallama
2024-09-06

is amazing! It comes from , which is also amazing! See thread 👇 to learn why was a critical natural resource.

mastodon.social/@christinkalla

Now @christinkallama@hcommonschristinkallama
2024-09-03

Well, did dissatisfied customers put stylus to clay thousands of years ago to complain about poor quality ?

.

mineralcup.org/2024/vote/r1m03

The Complaint Tablet of Ea-nasir: a tablet of whitish clay covered with cuneiform inscriptions. 

© The Trustees of the British Museum. Shared under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) licence.

To the Trustees: this artifact is stolen. Please return to its (more) rightful owners.
Zeolith :AuVerify:zeolith@autistics.life
2024-09-03

So, as a treat, today's #MineralCup bracket pitches the deep #perovskite against the red metallic #copper.

Definitely #TeamPerovskite here. Mainly because of the incredible pressures and temperatures this thing is found at, and for the potential applications of its cristalline structure in superconductivity.

Right now it's a very close one, in favor of perovskite. Let's keep it that way!

Which one are you voting for? #MinCup24

Zeolith :AuVerify:zeolith@autistics.life
2024-09-02

Okay, okay, okay, folx. Stop everything you are doing and pay attention. It's September again, and with September comes the now well known #MineralCup! Today's bracket pitches the mighty and strong #corundum against this mouthful and beast of exotic elements that is #arsenuranospathite.

Gotta admit that I have a bit of a soft spot for the gemstones in that one, so corundum it is!

Vote here: mineralcup.org/2024/vote

Note: yeah I know I forgot yesterday...

GeologistsCatGeologistsCat
2024-01-19

Today the in my outdoor / - / temporarily pool turned into the solid state of water which some humans define as and others not🙀
I have a nap in my heated bed...

@MineralCup

2023-10-01

mineralcup.org/2023/campaigns/ And for chrissakes don't vote for #Zircon. It wins every year.

#MinCup23 #MineralCup

Susie Leopold lBlastyLavagrrrl
2023-09-29

Links would be good.

Direct link to vote:
mineralcup.org/2023/campaigns/

Link to home page where you can go obsessively check results:
mineralcup.org

Dreamy blue sapphire has a lot of tiny minerals in it. They are zircons and monazites. https://www.gia.edu/gems-gemology/winter-2018-microworld-zircon-cluster-in-ethiopian-sapphire?fbclid=IwAR3T7OwSzKRF4s4XABV1qyaKMczQXDhSv199880bvJ06ExnBslKirePKy_c
Susie Leopold lBlastyLavagrrrl
2023-09-29

How, you might ask, does a perfectly formed get into a sapphire?

Sapphire melting temp: around 2030 °C. (wikipedia)
Zircon melting temp: high melting point (over 2500°C). (ga.gov.au/education/classroom-)
Tiny zircons can withstand a lot of what makes and destroys other minerals.

Vote: mineralcup.org/results/round-4

Dreamy blues in a sapphire that is host to some perfectly formed zircons and monazites.
Susie Leopold lBlastyLavagrrrl
2023-09-29

Just leaving this here. Zircon and monazite. You're not going to see calcite in a sapphire, it couldn't take the heat.

Dreamy blue sapphire that has some other crystals with it. The crystals are mostly zircon, but monzanite is also present.
2023-09-28

Voted early in the first semi-final of this year's #MineralCup and after a bit of thought went with #Calcite. Didn't vote for it in the quarters, but it's won me over for this round. #Zircon is attractive and sounds more impressive, but what sort of monster can honestly consider #trilobyte eyes then vote for the pretty boy gemstone?

#MinCup23

geographilegeographile
2023-09-27

and are neck and neck.

I have no strong opinions on these two either way. I love calcite in terms of fossils and travertine and sculpture and tufa. I love kyanite because it's really freaking pretty and it comes from other cool minerals. But you vote how you like.

Quarterfinals Match 3 —

mineralcup.org/results/round-3

Got behind on my #MineralCup blog posts (basically just pictures and links to info on the two minerals in each match).

Here's one of two (these matches are over):

flighttowonder.com/2023/09/19/

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