Today it’s #teamTalc for the Mineral Cup.
Talc, that tender and soft representative of the Mohs scale!
www.mineralcup.org/2026/vote-re...
@naturaelapides.bsky.social
@naturaelapides.bsky.socialToday it’s #teamTalc for the Mineral Cup.
Talc, that tender and soft representative of the Mohs scale!
www.mineralcup.org/2026/vote-re...
@ishizukan.bsky.social地面の下で育った結晶。名前は？ 答えはリプ欄に。 #鉱物好きと繋がりたい #mineral
@mexporg.bsky.socialLarge #Monazite crystal from Iveland, Norway.
#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert #pegmatite
@naturaelapides.bsky.socialTwo photos of delicate Franklinite crystals for this #MineralMonday, showing their striations and the contrast with the white matrix.
And don’t forget the Mineral Cup! #MinCup26
www.mineralcup.org/2026/vote-re...
@mexporg.bsky.socialColumnar aggregate of #Andalusite from pegmatite near Sklené nad Oslavou, Czech Republic.
Size: 8 x 6.5 cm
#MinCup26 #MinCup #pegmatite #mineral #crystal #mineralogy #mineralexpert
@pharna.bsky.socialwww.instagram.com/god.s_will_j...
#ミネラルザワールドin日本橋 で見ましたが、名前が貼ってなかった。。。
これはなーに？！
What is this #mineral ? Need help identifying. #rockhounding
@mexporg.bsky.socialPerfect natural #Citrine crystal from Shigar Valley, Gilgit-Baltistan, Pakistan.
This yellow #Quartz variety is very popular, but most of the specimens on the market is heat treated amethyst.
#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert
@catwithgeologists.bsky.socialToday it's #Quartz vs the newly discovered #Asagiite 😻 Sorry for the new #mineral but quartz makes the #clocks tick that remind our humans to serve us breakfast, lunch, dinner & the other meals & there are many.
#DoesItCat ? Yes
#MinCup26 #geologwithcats #geology
@topoin.bsky.social@mexporg.bsky.socialFresh find of smoky #Quartz in Mt. Blanc Massif, France
#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert
@minouette.bsky.socialrings of colour.
This print is part of a series of prints of mineral samples.
@globallf.bsky.socialMinerals power the green transition — but current forecasts may be overstating how much lithium, copper and other resources we actually need.
⛏️ Read the full #ThinkLandscape story to discover why #mineral needs are so uncertain: https://bit.ly/4qWgPgp
@mexporg.bsky.socialCommon #Quartz can accommodate other minerals, like #Rutile - resulting in variety called "rutilated quartz".
Here are some examples from Brazil and Austrian Alps:
#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert
@naturaelapides.bsky.socialNo one can do that to the venerable quartz!
@catwithgeologists.bsky.socialToday, it’s #cuprite versus #orpiment in the #MinCup26. Easy! The #mineral orpiment contains arsenic, & that is very toxic to #cats. But cuprite is a #copper oxide that often forms on #bronze statues, & bronze statues exist primarily to pay homage to cats.
#DoesItCat ? YES
#geologywithcats
@mexporg.bsky.socialRed #Cuprite is a minor ore of copper, usually forming as secondary mineral on primary copper ores. Gemmy cuprite crystals are popular among collectors.
Learn more in our comprehensive overview:
#MinCup26 #MinCup #mineral #crystal #mineralogy #mineralexpert
@ishizukan.bsky.socialコレクター向けの1問。この石の名前は？ 答えはリプ欄に。 #地学 #mineral
@naturaelapides.bsky.social
@fanad-art.bsky.socialOne of the joys of arriving in the studio the day after working on a painting, is seeing what has happened as it dries.
It reminds me I'm not in control - and I love that!
@mexporg.bsky.socialHuge cluster of nice and toxic #Orpiment crystals from China.
#MinCup26 #MinCup #mineral #mineralogy #crystal #mineralexpert #arsenic #sulfide