#MineralMonday Native copper in skarn, Silver Star, Montana USA. Overall cut slab 27 cm, FOV of main image 8x6 cm. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
@richardgibson.bsky.social
@richardgibson.bsky.social#MineralMonday Native copper in skarn, Silver Star, Montana USA. Overall cut slab 27 cm, FOV of main image 8x6 cm. ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
@naturaelapides.bsky.socialTo take a break from the frantic pace of the #MinCup26 and to celebrate #MineralMonday, I’d like to share these lovely andorite crystals with their beautiful, shiny metallic grey lustre, paired with quartz and golden sphalerite.
@mineralsocamerica.bsky.socialNo #MineralMonday today. Without contributions from people like you, I have nothing to post.
Would you like to feature your research, field photos, a neat mineral, a recent publication? Please send information and up to 4 images to akoziol1 at udayton dot edu.
@andersonmineral.bsky.socialStress-free appreciation for cute little puffballs of okenite, no need to think about picking a favourite and voting since this mineral isn’t in this year’s Mineral Cup. #MineralMonday #GeoscienceBluesky ⚒️🧪
@tingaringy-pottery.bsky.socialClinozoisite slab for this week's #mineralmonday. The pink and brown colours are from manganese.
@mrxexon.bsky.socialSum pie rights...
#mineralmonday #rocks
@earthsciweek.bsky.social🔎 #MineralMonday: GALENA has a Lead Role
#Galena is the main ore of #lead!
Lead is toxic, so responsible mining & recycling are essential ♻️
Learn more with the #MineralogicalSocietyOfAmerica interactive: min4kids.org/minerals-your-house
Images: James St John, Flickr; IvoShandor, Wikimedia Commons
@cambriancam.bsky.socialWelcome back to #mineralmonday and Happy Labor Day!
Here are beautiful crystals of the calcium rich Grossular Garnet species known as Hessonite. This specimen comes from Tungsten Hills in Inyo County, California. Can you see why Garnet is my favorite mineral group? I mean just look at this sample!
@richardgibson.bsky.social#MineralMonday Purple coquimbite aluminum-iron sulfate, yellow copiapite, Javier Mine, Peru. richardigibson.substack.com/p/coquimbite ⚒️ #geology . No MAGA! Science = Resistance! #standupforscience
@andersonmineral.bsky.socialI present to you on this Mineral Monday a very fine crystal of monazite, one of today’s Mineral Cup challengers. This one is from Joaquim Felício, Brazil. #MineralMonday #GeoscienceBluesky #MinCup26 ⚒️🧪
@daverodland.bsky.socialGoing multipurpose here for #MolluskMonday, #MineralMonday and #MeteoriteMonday !
🧪⚒️🦑💎☄️
Look, it's going to be a long day in the collections.
@mineralcollection.bsky.socialFor #MineralMonday
Ozocerite, a naturally-occurring odoriferous mineral wax or paraffin.
Chemically, ozokerite consists of a mixture of various hydrocarbons, mostly alkanes: CnH2n+2 n=20<40
This specimen is from Boryslav, Drohobych Raion, Ukraine
#ozocerite #ukraineminerals #boryslav
@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...
@tingaringy-pottery.bsky.socialCalcite for #mineralmonday
Highly pure source of calcium carbonate, it is an extremely common ingredient in ceramic glaze recipes.
