A heart made of feldspar minerals in a granite
Simbalito presenting the heart shaped minerals
Today: during #hedgewatch on #Fuerteventura we found this #granite that was greeting us with a #heart made of #feldspar - interior & rim are feldspar. The other #mineral's are #quartz & #mica.
We wish a wonderful Sunday
#PawForScale
#geologywithcats #geology #rocks #rock @mineralcup.bsky.social
14.12.2025 16:11
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Xocolatlite
Probably related to kuranakhite.
So, we have not only a meat rock aka Rhodochrosite, but also a chocolate rock - Xocolatlite.
@mineralcup.bsky.social, can we have some food for next year? Well, this year already :)
#mineral #mineralnames
www.mindat.org/min-38843.html
12.01.2026 21:02
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Natalie holding the Mineral Cup trophy for 2025.
Natalie presenting on Tourmaline in the 2025 Denison Mineral Cup
Audra presenting on lepidolite in the 2025 Denison Mineral Cup
Natalie raising the Mineral Cup Trophy after dispatching Olivine.
Congratulations to the 2025 Denison Mineral Cup Champion: Tourmaline! Natalie dispatched Matt's Olivine in the Finals by a slim margin. Great job by all.
05.12.2025 14:15
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Ore Mineral of the Year Copper β Mineral Cup & Ore Cup
Native copper in a prehnite-lined vug from Michigan, USA. Credit: David M. Maietta
2, 4, 6, 8, who do we appreciate? Copper! Copper! Yay!!
Congratulations to #OreCup winner and IMA Ore Mineral of the Year #Copper!
13.11.2025 08:00
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My difficulty this time is they can both be art supplies. :/
10.11.2025 19:12
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#Copper is omnipresent nowadays, but I came around to liking #molybdenite more, so my vote goes to the dark horse of the race.
10.11.2025 20:12
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#Copper has been holding on to an 8% lead most of the match. Itβs a lot, but #Molybdenite could catch up.
What topics should we cover in the #OreCup victory post?
10.11.2025 18:47
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Which would Ea-nasir vote for? Show your work.
10.11.2025 18:55
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Vote in Ore Cup FINALS β Mineral Cup & Ore Cup
Pick the Ore Mineral of the Year! Voting for Copper vs Molybdenite will remain open for 48 hours. Credit: David M. Maietta and Harold Moritz
#OreCup finals are between a pair of bewitching ore minerals that glitter and gleam. But only one can have your vote.
Will it be native copper or molybdenite? Youβre running out of time to choose!
Vote:
10.11.2025 16:02
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correction from earlier post (about semi final 2 still!), it's native copper vs molybdenite in the final! easier one for me, much as I love copper minerals I'll go with the soft sulfide!
10.11.2025 13:15
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Vote in Ore Cup FINALS β Mineral Cup & Ore Cup
Pick the Ore Mineral of the Year! Voting for Copper vs Molybdenite will remain open for 48 hours. Credit: David M. Maietta and Harold Moritz
Weβre in the final stretch of #OreCup!
Native #Copper is an ore so integral to our history that we named several eras after it and its alloys
#Molybdenite spent centuries tricking us into thinking it was something else entirely
Vote:
10.11.2025 12:01
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Whoops! Accidental jargon in our alt text. π
10.11.2025 08:11
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Not sure about ores or minerals but TIL about the word "vug". It's such a weird little word with such an interesting story
(the image on the left, with the copper, apparently depicts a vug, not to be confused with a wug which is not depicted on either of the images)
09.11.2025 23:06
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Vote then immediately fill out the playerβs survey with a note in the Other section. We can crosscheck for you.
10.11.2025 08:10
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Veins of red lightning
Hammered into shape, an art
Practiced to this day
#OreCup #MinPoem #copper
10.11.2025 04:13
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Vote in Ore Cup FINALS β Mineral Cup & Ore Cup
Pick the Ore Mineral of the Year! Voting for Copper vs Molybdenite will remain open for 48 hours. Credit: David M. Maietta and Harold Moritz
Itβs the #OreCup final between native #Copper and #Molybdenite.
Whatβs your favourite thing youβve learned about ores this week?
Ready to vote?
10.11.2025 08:01
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Results for Ore Cup Finals! β Mineral Cup & Ore Cup
Live results for the FINAL MATCH! This match will run for 48 hours .
With 48 hours for the #OreCup final match, we just hit the halfway mark!
Have you voted?
Vote: www.mineralcup.org/vote-results...
Do you need to campaign for your chosen fav?
Results: www.mineralcup.org/vote-results...
Will #Copper or #Molybdenum be our Ore Mineral of the Year?
10.11.2025 00:00
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#OreCup βοΈ sci-fi π§ͺ ππΌ scifi Geosciences #WomenInSTEM geology π ππͺ
Canada knows copper is the best ore!
09.11.2025 15:26
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Did! #VoteCopper #OreCup
Not just pennies, copper has been a key part of history, a major player in world economics.
copper "manillas" in Western Africa, copper jewelry among the Powhatan and other Indigenous Americans, it's role was vital in the 17th century & before.
09.11.2025 15:23
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Old Copper Culture | Milwaukee Public Museum
#Copper
Learning about Old Copper Culture in North America ca. 4000-1500 BC. I should know about this β born and living in Wisconsin β but apparently not covered in grade school or high school history classes.
So THANKS! #MinCup #OreCup #OreCup25
www.mpm.edu/research-col...
09.11.2025 19:14
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