Fossil Pea Crab (Pinnixia galliheri) - California It is a silicon dioxide

It is a silicon dioxide that contains metal impurities that create the moss-like effect within the stone

This is one unique specimen

It is said that obsidian is actually a mistranslation from Pliny the Elder's Natural History

and Phareodus sp

Fossil Pea Crab (Pinnixia galliheri) - California It is a silicon dioxideSize: 3. 1 x 2. 8 x 1. 0 in. Crab Size: 1. 2 in. Weight: 6. 2 oz Age: Middle Miocene Fossil Type & Species: Compression & Pinnixia galliheri Location: Monterey Formation, Carmel, California This cute little one is a great example of the fossils found in the Monterey Formation. Because they lived in a coastal environment, they are often found alongside other fossil fish, pine cones, and palm fronds. The natural orange coloring is due to iron oxide