Calcite and Stibnite Cluster Specimen - China 7x3” Tourmaline Desmophyllites are small desmoceratitid ammonite

Desmophyllites are small desmoceratitid ammonite characterized by a smooth and very involute shell that lived during the Santonian to Maachstrictian stages of the Late Cretaceous

Due to geologic conditions such as high pressure or heat

These Cornetite with Malachite Specimens come to us all the way from Congo

Often associated with the Sacral and Solar Plexus Chakras

These stunning Nautilus Pompilius Pearly Seashells are incredibly unique and one-of-a-kind

Calcite and Stibnite Cluster Specimen - China 7x3” Tourmaline Desmophyllites are small desmoceratitid ammoniteThis cluster is a fantastic combination of Calcite and Stibnite showcasing a gorgeous swirl pattern throughout the specimen. This Calcite and Stibnite Cluster also exhibits a sparkle of rare coloring of greys and creams. Frm Nandon China. Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". How is calcite formed?