Chalcedony ps. After fossil sponge (2016 find)

Bu Craa, Laayoune Province, Laayoune-Sakia El Hamra Region, Morocco
Small Cabinet, 5.2 x 4.0 x 2.5 cm
Start Time: 06/04/2018 6:45:00 pm (CDT)
End Time: 06/14/2018 6:31:45 pm (CDT)
Auction Closed
View Closed Auction Set

Item Description

Two-toned, translucent, brown and whitish chalcedony has replaced a sculptural globular colonial sponge. It looks like a snail in two views, with the large "shell" and bulging brown "eyes". These are strange looking pseudomorphs from recent Morocco finds. Originally marketed in Europe as being from Smara, Western Sahara, these are actually from these obscure open-pit phosphate mines, that have also produced snow-white quartz geodes (MINDAT). The deposits are Upper Cretaceous - Eocene age, 100-34 MYA.

Did You Know We Offer Custom Bases?

Learn More

Miss this auction? Buy Chalcedony mineral specimens on iRocks.com