#calcite #crystals with #pyrite matrix
Peru

Mineral Monday with some beautiful Vera Cruz Amethyst points on a bed of little dog tooth Calcites, Peidra Parada, Veracruz State, Mexico. I love the juxtaposition of the gnarly little gray brown calcites with the regal purple amethyst points🩶💜 #mineralmonday #amethyst #calcite #crystal #minerals

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2026 ESCONI Gem, Mineral, and Fossil Show – Preview #32: Calcite from Ourey, Colorado #minerals #calcite #ESCONIShow

esconi.org/2026/03/2026-esconi-gem-...

My beautiful honey calcite sphere. 🖤
I have so many ahhhmazing pieces and crystals of all kinds.
#crystals #calcite #honeycalcite #rock #sphere #yellow #video #reel

Help! We're removing the aboral disk of the brittle star Amphipholis squamata in search of juveniles - they're brooders - and we're finding these hollow ossicle-like rods, arranged in sequence. What the heck are they? #ophiroid #echinoderm #calcite
@echinoblog.bsky.social

Having a little fun today while listing some new specimens in my shop. Calcites from the Sweetwater Mine, Reynolds County, Missouri. Some include chalcopyrite. Pretty sweet bananas…I mean crystals 😂 #crystals #minerals #calcite #crystalcluster #yellowcrystals #chalcopyrite #crystalshop

Bright colored cobaltopan #Calcite from Agoudal, Bou Azzer, Morocco.

Size 12 x 9 cm

#mineral #crystal #mineralogy #mineralexpert

#calcite on #pyrite matrix from Peru
#minerals #crystals

Perfect and huge red #Fluorite octahedron sitting on the "paper" #Calcite from Huanggangliang Mine, Inner Mongolia, China.

#mineral #crystal #mineralogy #mineralexpert

www.mineralcollection.eu/product/2236...
#pseudomorph #calcite #siderite #carbonates #cavnic #romanianminerals #minerals #rocks #crystals #stones

One of my little treats from the recent Tucson Gem Show. Calcite w/ Chalcopyrite- Frohnau, Annaberg, Saxony, Germany. NFS. #crystals #crystal #calcite #chalcopyrite #mineralmonday

Have you noticed anything new in the nook over by our jewelry case?😍This brand new 36x24” #fineart #photograph of an upper section of #Connecticut’s own #KentFalls just arrived!😲And these #Selenite & Mystic Merlinite carvings of #Merkaba & Caribbean #Calcite cube are new, too!

Gray limestone host rock encloses an array of yellow-to-almond calcite crystals.

Calcite-laced septarian nodule (on an EXTREMELY dusty shelf - I'm a terrible housekeeper!), self-collected - Eagle Ford formation, Midlothian, Texas

#MineralMonday #rockcollecting #calcite

Mineral Monday:
The Alfie Norville Gem and Mineral Museum of Tucson Arizona
The Alfie Norville Museum (gemandmineralmuseum.arizona.edu), is housed in the Pima County Courthouse in Tucson AZ.
By Andrea Koziol.

#MSACommunications #MineralMonday #calcite #amethyst #geode #mineralmuseum

Dog-tooth #Calcite from Sýkořice quarry, Czech Republic.

#mineral #crystal #mineralogy #mineralexpert #MineralMonday

Calcite - Mineral Properties, Photos and Occurence Overview of calcite mineral physical properties, structure and its origin and occurence in nature.

#Calcite forms over 2000 known crystal shapes and has different range of colors. It has also very interesting optical properties. Learn more in our comprehensive mineral overview:

#mineral #crystal #MineralMonday #mineralogy

mineralexpert.org/article/calc...

www.mineralcollection.eu/product/2187...
#dolomite #calcite #carbonates #germanminerals #minerals #rocks #crystals #stones

Scepter #Amethyst on brown #Calcite from Goboboseb, Namibia.

Size 10 x 9 cm

#Quartz #mineral #mineralogy #crystal #mineralexpert

Polished Septarian Nodule | Calcite &

Aragonite Natural Stone Close-Up #septarian #septariannodule #calcite

Amethyst Crystal Cluster with Calcite | Natural

Mineral Close-Up #amethyst #amethystcluster #calcite #quartz

Massive Calcite Crystal Cluster | Natural Mineral Specimen Close-Up #calcite #calcitecrystal #crystalcluster

#ecsmonday

How do you date brittle #deformation in sedimentary basins? Boschetti et al. (FR) combine U-Pb #calcite dating with #RSCM thermometry to unravel the polyphase tectonic history of the Vocontian Basin at the Alps-Pyrenees junction:

doi.org/10.5194/se-17-35-2026
#paperalert #geochronology

He’s found #HerkimerDiamond #crystals, Smokey #Quartz Druzy crystals that form alongside them, #HerkimerDiamonds in the matrix, and #calcite crystals! All from the #Herkimer, #NY area!

Emerald on Calcite
Colombia

#emerald #calcite #gemstone #mineral #gemology #mineralogy #geology #nature #beauty #green #crystal #mineralcollecting #mineralcollector #colombia

www.mineralcollection.eu/product/2148...
#pyrite #calcite #quartz #metal sulfides #carbonates #silicates #baiasprie #romanianminerals #minerals #rocks #crystals #stones

images.google.com
#malachite #calcite #carbonates #ojuelamine #mexicanminerals #minerals #rocks #crystals #stones

www.mineralcollection.eu/product/2143...
#stibnite #apophyllite #calcite #samsonmine #andreasberg #metalsulfides #siicates #carbonates #minerals #rocks #crystals #stones

Calcite de la chatte

La calcite est un minéral composé de carbonate de calcium, souvent présent dans les roches sédimentaires et métamorphiques, et utilisé dans divers secteurs d'industrie. #Calcite #mineral #carbonate #roches #industriel

Rock-forming minerals Common minerals combine to make rocks The Earth's crust is made of over 2,000 minerals. Of these, the most abundant are feldspar, quartz, #calcite, dolomite, mica, pyroxene, #amphibole, garnet and olivine. Because they combine to make rocks, these are called 'rock-forming minerals. Feldspars are the most abundant minerals in the Earth's crust.

Rock-forming minerals

Common minerals combine to make rocks

The Earth's crust is made of over 2,000 minerals. Of these, the most abundant are feldspar, quartz, #calcite, dolomite, mica, pyroxene, #amphibole, garnet and olivine. Because

New Handmade Non Tarnish Copper Earrings live on the website starting at only $15! Genuine crystals like #rosequartz #carnelian #calcite #opalite #amethyst #pearl & more! 🥰

#fantasyart #copper #metal #crystals #witchy #pagan #metaphysics #wire #weaving #art