Polished Specularite Slab - Michigan This species of ammonites is

This species of ammonites is characterized by its ribbed shells and white exterior

bringing misfortune

It most commonly forms in veins or botryoidal masses

and woody plants

The largest piece of calcite ever found came from Iceland

Polished Specularite Slab - Michigan This species of ammonites isSpecularite, also known as specular hematite, is a variety of hematite that is identified by microscopic flakes of hematite and mica that imitate a mirror. This mineral can be found all over the world including Canada, Italy, Brazil, Sweden, and the United States. This slab has been coated with a thin layer of epoxy to help stabilize the specimen and give it a clean appearance. Hematite is an iron oxide found virtually everywhere on Earth. This