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Reposted by Owen Missen

Mineral Cup #MinCup25 @mineralcup.bsky.social · 7d

Hark! What’s that we see on the horizon?

Is it something new? Something mostly metallic, quite heavy, and essential to society? It’s an all-new collaboration with IMA!

Ore Cup: www.mineralcup.org/about-ore-cup

Voting starts Monday November 3. Winner crowned IMA Ore Mineral of the Year

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Mineral Cup #MinCup25 @mineralcup.bsky.social · 7d

We have a #MinCup25 champion!!

Congratulations, #Kyanite!
www.mineralcup.org/2025

After eight years of competing, another few hours to verify votes was nothing, right?

Amazing first run, #Tugtupite, and better luck next year.

2025 — Mineral Cup

www.mineralcup.org

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Owen Missen @scimissionowen.bsky.social · 11d

Green vs green!
Cuprosklodowskite for me, for its extra dose of vibrancy and interesting geochemistry!
www.mindat.org/photo-419767...

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Owen Missen @scimissionowen.bsky.social · 13d

pug-putite ftw

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Owen Missen @scimissionowen.bsky.social · 13d

pug mineral!

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Erik Strub @erikstrub.bsky.social · 13d

"pink" is the little sister of... I don't know. To use "pink" as descriptive for #tugtupite is an insult. Reindeer-bloodish is the least but I would just describe it as the most marvellous color on the R/M side of the RGB/CYM color scales. Vote #tugtupite #mincup25

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Compton Scatterbrained @comptonscatter.bsky.social · 13d

Beryllium!!

m.youtube.com/watch?v=GGfk...

Marie Curie's Periodic Pantry: Beryllium

YouTube video by Super Science Friends

m.youtube.com

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Owen Missen @scimissionowen.bsky.social · 13d

I know that feeling 🤣

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tabitha @spiritbread.bsky.social · 19d

Tugtupite is so pretty when it’s polished too. Looks like preserved cherry blossoms 🌸

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Autumn of the Shoggoths @redsage.bsky.social · 13d

Perovskite is amazing I’ll grant you but I can’t get over the bright blood of tugtupite charged up by the summer sun but hiding in the deep Greenland winter. #TeamTugtupite

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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Mika McKinnon @mikamckinnon.bsky.social · 13d

Since #hematite won its quarterfinal, if we can also get #tugtupite through we have the potential of a blood rock final match.

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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Nadine, Haunter of Rocks 👻 @nadwgab.bsky.social · 19d

I'm voting for tugtupite because I had a dream about it last night 😂 I found massive chunks of tugtupite, and cancrinite and sodalite too, at the base of a cliff #MinCup25 #minerals

Mineral Cup #MinCup25 @mineralcup.bsky.social · 19d

#MinCup Round 2 Match 4:
It’s a battle of mineralogical oddities as organic mineral #Carpathite battles against vs #Tugtupite, a mineral that looks like reindeer blood!

Vote: www.mineralcup.org/2025/vote/r2...

Results: www.mineralcup.org/2025/results...

Vote in Round 2 Match 4 — Mineral Cup

Click here to vote in Carpathite vs Tugtupite Photo credits: Michael Roarke

www.mineralcup.org

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Susie Leopold @blastylavagrrrl.bsky.social · 13d

Tugtupite!
Name from the Inuit "tuttu" meaning "reindeer blood!" Alluding to its color and "it was created when Tutu the reindeer girl gave birth to her first child, symbolizing the life-giving essence and the profound love of a mother for her child."

#MinCup25

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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👻SAAAAAAAAHHHHHHvik Ford 🎃 @saavikford.bsky.social · 13d

As in Rounds 1&2, it’s #Tugtupite for me! It’s got an Indigenous name & as @redsage.bsky.social said it is:

tenebrescent, fluorescent in short & long wave UV & phosphorescent—from Greenland, it would go dim & mild during the long winters and then bright and intense during summer(!)

#MinCup25

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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Alex Katakis @thatwasodd.bsky.social · 14d

I just realized that if hematite and tugtupite make it to the finals, we can have blood rock vs blood rock for the final match!

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Owen Missen @scimissionowen.bsky.social · 13d

Voting for tugtupite today!
too many perovskite votes aren't for the mineral but for the eponymous group of structures.
Tugtupite is also a beryllium containing mineral, and I do love a mineralogical oddity!

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

#MinCup25 Quarterfinal 2: It's #perovskite and its intriguing structure against #tugtupite's collection of optical tricks for this quarterfinal match!

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

Vote in Quarterfinal 2 — Mineral Cup

Click here to vote in Perovskite vs Tugtupite Photo credit: Domenico Preite and Géry Parent

www.mineralcup.org

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Owen Missen @scimissionowen.bsky.social · 13d

still a tight margin! vote for haematite for beautiful russet reds!

Mineral Cup #MinCup25 @mineralcup.bsky.social · 13d

4.5 hours remaining to rally votes:

Mineral Cup #MinCup25 @mineralcup.bsky.social · 14d

#MinCup25 Quarterfinal 1: Colourful phoenix #Haüyne goes against heavyweight industrial powerhouse #Hematite.

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

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J. Raasch @jraasch.bsky.social · 13d

#MinCup25

Don’t worry, followers. I’ll return to plants and vegetable garden and other science and maybe more microscopy attempts soon. 🙃

It is mineral month. And I become obsessed with minerals. But my attention span is approaching its limit.

Martin Hajovsky @martinhajovsky.bsky.social · 13d

Hematite is starting to trail in this race. Haüyne’s hypnotic blue stare needs to be countered! Vote #Hematite for so, so many art, planetary science, and basic geology reasons.

Bloodlike, first with “-ite.”
Key role on Earth, Mars, Venus
Hematite, Vote now!

#MinCup25 #MinCupHaiku

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🌌Éskʷətayit @joxter.bgay.cat · Sep 7

Related! #MinCup25 #Hematite

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Susie Leopold @blastylavagrrrl.bsky.social · 13d

I love both minerals! Hematite makes BIFs, one of the best rocks, plus it has so many habits and finishes. Haüyne makes gorgeous blues and it likes to capture bubbles and other minerals as inclusions. It also has some cool patterns on thin section.
TS images: www.alexstrekeisen.it/english/vulc...

While there are numerous haüyne in the field-of-view, a large two-lobed haüyne dominates the field of view. It shows a dark, jagged band around the haüyne crystals, then a band of light blue, then a center of crosshatched patterns from exsolution of iron-sulfides and iron-oxides.
Since haüyne is an isometric mineral, it generally goes black when the polars are crossed. If it has inclusions, they can, and do, react to the change polarization.

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GSA's MGPV Division @gsa-mgpv-division.bsky.social · 13d

#MinCup25 Quarterfinal 1: 🔷 #Haüyne vs 🩸 #Hematite. A fluorescent feldspathoid of brilliant blues meets the iron oxide that contributes to the iconic red color of Mars.

#minerals #mineralogy

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Owen Missen @scimissionowen.bsky.social · 13d

vote for hematite!!!!
It can sometimes form an 'iron rose'!
www.mindat.org/photo-80260....

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Owen Missen @scimissionowen.bsky.social · 14d

Love a good iron oxide mineral - it's hematite for me! One of the more common oxidation products in sulfide weathering reactions.

Mineral Cup #MinCup25 @mineralcup.bsky.social · 14d

#MinCup25 Round 3 Match 1: Colourful phoenix #haüyne goes against heavyweight industrial powerhouse #hematite.

Vote: www.mineralcup.org/2025/vote/r3...
Results: www.mineralcup.org/2025/results...

www.mineralcup.org

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DL Whitney @sorosilicate.bsky.social · 16d

#kyanite in biotite gneiss from the Entia Dome, central Australia. Kyanite forms deep in the crust before it makes its way to the Earth’s surface, a slow and much more challenging journey than taenite’s fall through space. #MinCup25

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Chris 🧪⚒️ @chrisdoesrocks.bsky.social · 16d

One mineral tells us about the depth below the earth, the other comes from beyond Earth. You can decide which one goes to the next round by voting at mineralcup.org today! #geology #mineral #MinCup25

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