Ametrine | Bolivia Sand The fossil’s intricate structure and

The fossil’s intricate structure and earthy coloration reveal the beauty of early marine life preserved in stone over hundreds of millions of years

the rosettes erode into positive relief on exposed rock surfaces

This dioptase on matrix specimen comes from Congo and features vivid green dioptase crystals naturally formed on their host rock

these marine invertebrates had chambered shells for buoyancy

This item is 3“ x 1

Ametrine | Bolivia Sand The fossil’s intricate structure andAmetrine is a rare, naturally occurring variety of quartz that features a unique bi colored blend of purple amethyst and yellow citrine in one single stone. Sourced in Bolivia, it forms through the differential oxidation of iron within the crystal. This item is 2 x 1. 5 and weighs 2. 45 oz.