Stilbite on Apophyllite and Matrix - IA1 Amethyst Geode It forms into hexagonal shapes

It forms into hexagonal shapes in arid climates from the oxidation of lead ore deposits

As a marine fossil we can see many of the animal's structure

The pieces you receive may not resemble the images

Accessories and weapons included

These fossilized marine bugs from over 245 million years ago may not be able to bite anymore but they sure look neat in their fossilized state

Stilbite on Apophyllite and Matrix - IA1 Amethyst Geode It forms into hexagonal shapesStilbite is a tectosilicate mineral, in the zeolite group made of calcium sodium and aluminum silicate. It often grows alongside Apophylite and comes in a variety of colors. The image is the exact mineral rock you will receive, this specimen exhibits a pearly cream luster. Length: 5. 5 in Width: 4 in Height: 2. 5 Weight: 25. 3 oz