This is a beautiful specimen of golden brown Vesuvianite crystals on a white carbonate matrix from Mexico

Name: Barite Crystal on Matrix

Flinders Ranges

From the Hupé Collection : "Amgala (Oum Dreyga) 4

Clarity:  Transparent

Pseudomorph Goethite After Marcasite | Prophecy Stone | 31 gr | Farafra Oasis, Egypt | SO24 Size:A This is a beautiful specimenChoose your Pseudomorph! Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another. The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal,