#mineralcup — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mineralcup, aggregated by home.social.
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Please vote Dioptase the rare pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite in the Mineral Cup semi-finals!
https://www.mineralcup.org/2025/vote/r3m04
Emerald copper FTW 💚💎🧡
We can get a #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;PPressure or fire, heating things up to get zappadelic, gotta love that.
Better yet:
"As mentioned in the introduction, there is a profound relationship between pyro and piezo sensors: Every pyroelectric crystal is also a piezoelectric crystal (but not vice versa)."
Heating leads to expansion of the crystal lattice, and a measurable electric voltage.https://www.dewetron.com/news/the-piezoelectric-and-pyroelectric-effect/
(After the last two days seeing mass vote stuffing tampering attempts, they're auditing preliminary results, so please rope in new folks to vote for this little toxic pyro guy instead! 🍀 Thank you for voting!)
#Dioptase #MinCup25 #pyroelectric #pyroelectricity #MineralCup -
Please vote Dioptase the rare pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite in the Mineral Cup semi-finals!
https://www.mineralcup.org/2025/vote/r3m04
Emerald copper FTW 💚💎🧡
We can get a #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;PPressure or fire, heating things up to get zappadelic, gotta love that.
Better yet:
"As mentioned in the introduction, there is a profound relationship between pyro and piezo sensors: Every pyroelectric crystal is also a piezoelectric crystal (but not vice versa)."
Heating leads to expansion of the crystal lattice, and a measurable electric voltage.https://www.dewetron.com/news/the-piezoelectric-and-pyroelectric-effect/
(After the last two days seeing mass vote stuffing tampering attempts, they're auditing preliminary results, so please rope in new folks to vote for this little toxic pyro guy instead! 🍀 Thank you for voting!)
#Dioptase #MinCup25 #pyroelectric #pyroelectricity #MineralCup -
Please vote Dioptase the rare pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite in the Mineral Cup semi-finals!
https://www.mineralcup.org/2025/vote/r3m04
Emerald copper FTW 💚💎🧡
We can get a #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;PPressure or fire, heating things up to get zappadelic, gotta love that.
Better yet:
"As mentioned in the introduction, there is a profound relationship between pyro and piezo sensors: Every pyroelectric crystal is also a piezoelectric crystal (but not vice versa)."
Heating leads to expansion of the crystal lattice, and a measurable electric voltage.https://www.dewetron.com/news/the-piezoelectric-and-pyroelectric-effect/
(After the last two days seeing mass vote stuffing tampering attempts, they're auditing preliminary results, so please rope in new folks to vote for this little toxic pyro guy instead! 🍀 Thank you for voting!)
#Dioptase #MinCup25 #pyroelectric #pyroelectricity #MineralCup -
Please vote Dioptase the rare pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite in the Mineral Cup semi-finals!
https://www.mineralcup.org/2025/vote/r3m04
Emerald copper FTW 💚💎🧡
We can get a #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;PPressure or fire, heating things up to get zappadelic, gotta love that.
Better yet:
"As mentioned in the introduction, there is a profound relationship between pyro and piezo sensors: Every pyroelectric crystal is also a piezoelectric crystal (but not vice versa)."
Heating leads to expansion of the crystal lattice, and a measurable electric voltage.https://www.dewetron.com/news/the-piezoelectric-and-pyroelectric-effect/
(After the last two days seeing mass vote stuffing tampering attempts, they're auditing preliminary results, so please rope in new folks to vote for this little toxic pyro guy instead! 🍀 Thank you for voting!)
#Dioptase #MinCup25 #pyroelectric #pyroelectricity #MineralCup -
Please vote Dioptase the rare pyroelectric #TeamGreen #DesertEmerald through to go against #tugtupite in the Mineral Cup semi-finals!
https://www.mineralcup.org/2025/vote/r3m04
Emerald copper FTW 💚💎🧡
We can get a #piezoelectricity versus #pyroelectricity battle for the ages! It's * #ELECTRIC * ;PPressure or fire, heating things up to get zappadelic, gotta love that.
Better yet:
"As mentioned in the introduction, there is a profound relationship between pyro and piezo sensors: Every pyroelectric crystal is also a piezoelectric crystal (but not vice versa)."
Heating leads to expansion of the crystal lattice, and a measurable electric voltage.https://www.dewetron.com/news/the-piezoelectric-and-pyroelectric-effect/
(After the last two days seeing mass vote stuffing tampering attempts, they're auditing preliminary results, so please rope in new folks to vote for this little toxic pyro guy instead! 🍀 Thank you for voting!)
#Dioptase #MinCup25 #pyroelectric #pyroelectricity #MineralCup -
Oh wow this is a gorgeous specimen! Absolutely bonkers price, but the silver price (according to a quick Google) is as of today approx US$41/oz - and then you've got to cover finders fees, taxes, import costs, the upcharge for how pretty that formation is, actually gaining profit over the vendor's costs to be at Tucson Gem Show and have sufficient stock (not all vendors also mine/shape/whatever their own stock or work super hand in glove with the folk who do. So)...
(Mind you if it was JUST priced on weight and today's price, rough math says it weighs 11.58lb, approx., which might be true but seems overly heavy for the measurements in the alt-text. No I'd guess about a third to half that price is covering vendor costs for it rather than strict valuation of it.)
Aaaaaanyway. .... I just wanted to say it was pretty and adhd went "okay bur consider". 🙄😅😅🤣🤣 sorry and good morning ish???
via @cobalt123
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@MineralCup I am once again asking for people to vote for Dioptase! 🙏 ⬆️
:take_my_money: PYROELECTRIC :blobfoxdealwithitfingerguns: You heat that babe, you get ⚡
https://www.mineralcup.org/2025/vote/r1m10
Rerun campaign! Mineral or gem images in the reply above
Cuboids!
Dioptase on a matrix of sky-blue chrysocolla.
Dioptase gem.
Dioptase on calcite.#Dioptase images. Stunningly gorgeous & vivid green turquoise colour gem, cubes or cuboids or whatever your technical terms. Pictures saved from Twtr or Google, likely during 2021 or 2022 #MinCup.
Dioptase need loads more votes by later on because it's a grudge match to some.
Opt in for some "#Dio och tasering" hard. ROCK. times this mineral cup!
#MinCup25 (Damn tag based 'economy' here.) #MinCup2025 #MineralCup #MineralCup25 #MineralCup2025 #TeamDioptase #WordPlay
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@MineralCup I am once again asking for people to vote for Dioptase! 🙏 ⬆️
:take_my_money: PYROELECTRIC :blobfoxdealwithitfingerguns: You heat that babe, you get ⚡
https://www.mineralcup.org/2025/vote/r1m10
Rerun campaign! Mineral or gem images in the reply above
Cuboids!
Dioptase on a matrix of sky-blue chrysocolla.
Dioptase gem.
Dioptase on calcite.#Dioptase images. Stunningly gorgeous & vivid green turquoise colour gem, cubes or cuboids or whatever your technical terms. Pictures saved from Twtr or Google, likely during 2021 or 2022 #MinCup.
Dioptase need loads more votes by later on because it's a grudge match to some.
Opt in for some "#Dio och tasering" hard. ROCK. times this mineral cup!
#MinCup25 (Damn tag based 'economy' here.) #MinCup2025 #MineralCup #MineralCup25 #MineralCup2025 #TeamDioptase #WordPlay
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@MineralCup I am once again asking for people to vote for Dioptase! 🙏 ⬆️
:take_my_money: PYROELECTRIC :blobfoxdealwithitfingerguns: You heat that babe, you get ⚡
https://www.mineralcup.org/2025/vote/r1m10
Rerun campaign! Mineral or gem images in the reply above
Cuboids!
Dioptase on a matrix of sky-blue chrysocolla.
Dioptase gem.
Dioptase on calcite.#Dioptase images. Stunningly gorgeous & vivid green turquoise colour gem, cubes or cuboids or whatever your technical terms. Pictures saved from Twtr or Google, likely during 2021 or 2022 #MinCup.
Dioptase need loads more votes by later on because it's a grudge match to some.
Opt in for some "#Dio och tasering" hard. ROCK. times this mineral cup!
#MinCup25 (Damn tag based 'economy' here.) #MinCup2025 #MineralCup #MineralCup25 #MineralCup2025 #TeamDioptase #WordPlay
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I maintain that this is a rude matchup. Ruuuuude. I'm gonna delay my vote til morning - someone poke me in like 10 hours or something - but also I need a cute bit of #wavellite for reasons of "gimme rocks pls thx".
via @MineralCup
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I've been eaten by a grue but this match pulled me back because #azurite my beloved,,,,
Look, #kosmochlor is a space rock, big whoop. Did you miss they've also found it terrestrially? (Is it remnants of Other Space Rock? Maybe. Shhhhh.) They buried the lede that it's a #clinopyroxene: it's a *temperature and pressure indicator*. I.e., certain formations, colors, levels of occurrence, etc etc etc, say a LOT about how hot e.g. a magma was, what other minerals and ores might be (geologically) nearby, what stressors were on these rocks over time, etc.
Clinopyroxenes are, for the most part, *scientifically* valuable rather than monetarily, aiui. (#Jadeite is a notable exception.) (#Nephrite is not even a clinopyroxine!) (Freely admit I may be wrong!)
Aaaaanyway: scientifically, yes, it's super cool. Azurite is a favorite and I gotta vote for one of my favorite copper minerals. 😂🤷🏻
(Let's be real, bar a wild upset, the space mineral will win. But azurite tho. Aaaaaaazuuuuuuriiiiiiiite.)
via @MineralCup
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I've been eaten by a grue but this match pulled me back because #azurite my beloved,,,,
Look, #kosmochlor is a space rock, big whoop. Did you miss they've also found it terrestrially? (Is it remnants of Other Space Rock? Maybe. Shhhhh.) They buried the lede that it's a #clinopyroxene: it's a *temperature and pressure indicator*. I.e., certain formations, colors, levels of occurrence, etc etc etc, say a LOT about how hot e.g. a magma was, what other minerals and ores might be (geologically) nearby, what stressors were on these rocks over time, etc.
Clinopyroxenes are, for the most part, *scientifically* valuable rather than monetarily, aiui. (#Jadeite is a notable exception.) (#Nephrite is not even a clinopyroxine!) (Freely admit I may be wrong!)
Aaaaanyway: scientifically, yes, it's super cool. Azurite is a favorite and I gotta vote for one of my favorite copper minerals. 😂🤷🏻
(Let's be real, bar a wild upset, the space mineral will win. But azurite tho. Aaaaaaazuuuuuuriiiiiiiite.)
via @MineralCup
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I've been eaten by a grue but this match pulled me back because #azurite my beloved,,,,
Look, #kosmochlor is a space rock, big whoop. Did you miss they've also found it terrestrially? (Is it remnants of Other Space Rock? Maybe. Shhhhh.) They buried the lede that it's a #clinopyroxene: it's a *temperature and pressure indicator*. I.e., certain formations, colors, levels of occurrence, etc etc etc, say a LOT about how hot e.g. a magma was, what other minerals and ores might be (geologically) nearby, what stressors were on these rocks over time, etc.
Clinopyroxenes are, for the most part, *scientifically* valuable rather than monetarily, aiui. (#Jadeite is a notable exception.) (#Nephrite is not even a clinopyroxine!) (Freely admit I may be wrong!)
Aaaaanyway: scientifically, yes, it's super cool. Azurite is a favorite and I gotta vote for one of my favorite copper minerals. 😂🤷🏻
(Let's be real, bar a wild upset, the space mineral will win. But azurite tho. Aaaaaaazuuuuuuriiiiiiiite.)
via @MineralCup
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I've been eaten by a grue but this match pulled me back because #azurite my beloved,,,,
Look, #kosmochlor is a space rock, big whoop. Did you miss they've also found it terrestrially? (Is it remnants of Other Space Rock? Maybe. Shhhhh.) They buried the lede that it's a #clinopyroxene: it's a *temperature and pressure indicator*. I.e., certain formations, colors, levels of occurrence, etc etc etc, say a LOT about how hot e.g. a magma was, what other minerals and ores might be (geologically) nearby, what stressors were on these rocks over time, etc.
Clinopyroxenes are, for the most part, *scientifically* valuable rather than monetarily, aiui. (#Jadeite is a notable exception.) (#Nephrite is not even a clinopyroxine!) (Freely admit I may be wrong!)
Aaaaanyway: scientifically, yes, it's super cool. Azurite is a favorite and I gotta vote for one of my favorite copper minerals. 😂🤷🏻
(Let's be real, bar a wild upset, the space mineral will win. But azurite tho. Aaaaaaazuuuuuuriiiiiiiite.)
via @MineralCup
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I've been eaten by a grue but this match pulled me back because #azurite my beloved,,,,
Look, #kosmochlor is a space rock, big whoop. Did you miss they've also found it terrestrially? (Is it remnants of Other Space Rock? Maybe. Shhhhh.) They buried the lede that it's a #clinopyroxene: it's a *temperature and pressure indicator*. I.e., certain formations, colors, levels of occurrence, etc etc etc, say a LOT about how hot e.g. a magma was, what other minerals and ores might be (geologically) nearby, what stressors were on these rocks over time, etc.
Clinopyroxenes are, for the most part, *scientifically* valuable rather than monetarily, aiui. (#Jadeite is a notable exception.) (#Nephrite is not even a clinopyroxine!) (Freely admit I may be wrong!)
Aaaaanyway: scientifically, yes, it's super cool. Azurite is a favorite and I gotta vote for one of my favorite copper minerals. 😂🤷🏻
(Let's be real, bar a wild upset, the space mineral will win. But azurite tho. Aaaaaaazuuuuuuriiiiiiiite.)
via @MineralCup
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Mmmmm... #haünye just because volcanoes. I'm simple today.
That said, #jeremejevite sounds pretty fucking cool too. Genuinely a case where I'd pick both if I could.
via @MineralCup
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Hmmmmm.... I like how fluffy #okenite is - also fun fact: it turns gelatinous in HCl! (The things you learn from reading the whole #mindat page, lol. [Side note does Mindat have an @ over here?]) I think that would be fun to poke under a fume hood. (Alas I don't have any okenite or access to a fume hood.)
But I think I'm gonna go with #stibnite - kohl has been important for thousands of years, after all; plus, antimony has loads of uses both modern and ancient, iirc. (Don't ask me to name any right now lol. Migraine brain says mmm rocks.) And, stibnite *is* closely associated with arsenic - very similar symptoms if you ingest it, actually.
One wonders if using kohl was also poisoning oneself.... 🤔
via @MineralCup
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#Okenite looks like something you see from the site of a surviving meteorite that you collect and put on the mantel of the fireplace... until it starts cutely purring.
You are also advised NOT to eat #Stibnite.
https://rockidentifier.com/wiki/Stibnite.html -
Mineral Monday is back! What is the Mineral Cup? See www.mineralcup.org. Vote for your favorite mineral each day in September. #MSACommunications #MineralMonday #mineralogy #MineralCup @mineral_cup #MinCup25
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Difficult choice in the first match.
#Chrysotile is a mineral that will make you sick while #Pectolite sounds like short-lived artificial sweetener that will eventually make you sick.
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Mmmm okay let's be honest, #chrysotile has a loooong and storied history ("if you or a loved one has been diagnosed with mesothelioma, you may be entitled to compensation"), but I've gotta give it to #pectolite!
Because a) look at those cool formations it makes, and b) *larimar*! Larimar is pectolite that gets its color from copper, and as far as anyone has ever found, is *only* found in the Dominican Republic. Limited source! High cost! 100% gorgeous! (There's a reason I only have small pieces lol.)
via @MineralCup
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#Dioptase vs #wavellite is not fair this early in the bracket 💀
But 👀👀 that's a whole lot of minerals I'm not familiar with this year! Time to get started on doing some looking up and picking my faves - and deciding what merits I'm voting on this year. 🤣🤣
via @MineralCup
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#Dioptase vs #wavellite is not fair this early in the bracket 💀
But 👀👀 that's a whole lot of minerals I'm not familiar with this year! Time to get started on doing some looking up and picking my faves - and deciding what merits I'm voting on this year. 🤣🤣
via @MineralCup
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This year's Mineral Cup bracket! Starts September 1st at www.MineralCup.org
How in the world will I choose between #Paddlewheelite and #Mannardite ?
#MinCup #MinCup25 #Mineralogy #Geology #EarthMaterials #MineralCup
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Opaque #spinel is the main aluminum-bearing mineral in the Earth's upper mantle. Here surrounded by pale olivine brown orthopyroxene and green clinopyroxene.
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Vivianite! Phosphate bones plus dissolved iron equals blue #Vivianite.
https://www.alaskasnewssource.com/2023/10/28/rare-blue-tusked-mammoth-auction-anchorage/
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https://www.mineralcup.org/2023/campaigns/round-5-match-1 And for chrissakes don't vote for #Zircon. It wins every year.
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How, you might ask, does a perfectly formed #zircon get into a sapphire?
Sapphire melting temp: around 2030 °C. (wikipedia)
Zircon melting temp: high melting point (over 2500°C). (https://www.ga.gov.au/education/classroom-resources/minerals-energy/australian-mineral-facts/zircon)
Tiny zircons can withstand a lot of what makes and destroys other minerals.Vote: https://www.mineralcup.org/results/round-4-match-1
#TeamZircon #MinCup23 #MinCup2023 #MineralCup23 #MineralCup2023 #MineralCup #MinCup #SciComm #Science #Minerals #Geology #Mineralogy #Teaching #Education
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Just leaving this here. Zircon and monazite. You're not going to see calcite in a sapphire, it couldn't take the heat.
#TeamZircon #sapphire #MineralInclusions #euhedral #MinCup23 #MinCup2023 #MineralCup23 #MineralCup2023 #MineralCup #MinCup #SciComm #Science #Minerals #Geology #Mineralogy #Teaching #Education #STEM #Zircon -
Come on and vote for the spectacular hothouse #orchid of #Minerals: #Sodalite. Only the rarest of conditions produce this fabulous gem! #TeamSodalite #MineralCup #MinCup23 #MinCup2023
Vote here! Vote now! Vote once!
https://www.mineralcup.org/2023/campaigns/round-1-match-4 -
C'mon folks, go to #MineralCup at https://www.mineralcup.org/2023/campaigns/round-1-match-2 and put your vote in for #Quartz! Quartz is the working stiff of #Minerals, the everyman, it's the Joad family of minerals, basically. Sure #cinnabar is pretty, it's splashy, and is an important mercury ore mineral, it's worthy, but can you count on it when the chips are down and you need to build a road, or make a sandcastle? Why do these people hate #sandcastles? That's like hating #kittens. #MinCup23 #TeamQuartz
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Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.
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Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.
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Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.
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Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.
-
Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.