Discover Top Posts Tagged with #pseudomorph

Beautiful lavender and cream banding flows in tight, orderly patterns across this polished half. The pale purple tones grade seamlessly into soft grays with excellent translucency. Clean cut shows the full husk perimeter intact with nice contrast between the calm interior and darker outer edges.

#agates #rockhounding #geology #laguna agate #pseudomorph #polished stone #mineral collecting #desert minerals #earth science #gem collector #mineral art

3.4" Blue Chalcedony Pseudomorph After Anhydrite - Peru

#119$#chalcedony #Peru #Pseudomorph #blue #png #transparent #geology #gemstones #crystal specimen #crystal

Day 12: Inky

I acknowledge this is ridiculous:p

For @montereybayaquarium 's Deep Sea December

#mbari #monterey bay aquarium #pseudomorph #shark #inky

3.6" Blue Chalcedony Pseudomorph After Anhydrite - Peru

#chalcedony #pseudomorph #anhydrite #png #transparent #geology #crystal specimen #rocks #gemstones

The kind that you can get lost in the details as you get closer. A beauty that can encompass many art forms, from cubism to graffiti and even abstract expressionist.

3D Pseudomorph Agate

My favorite rock out of my (tiny) rock collection is a malachite sample. I would commit many crimes for a chunk of azurite though! Do you have any samples of either?

Here is my best malachite!

This piece is a pseudomorph, or "false form," a mineral taking the shape of a different mineral!

It started out as a cluster of azurite crystals. Over time, the azurite turned into malachite! This is something that can happen to azurite which is exposed to the air over long periods of time. It's not very chemically stable, and it reacts with moisture in the air to become the much more stable malachite - which chemically speaking is pretty much the exact same mineral but with way more hydrogen molecules. The malachite replaced the azurite perfectly, even preserving the exact shape of its crystals! Isn't that cool?!

As for azurite, this big sparkly specimen is my best piece of that!