2.2" Lustrous Vanadinite Crystals on Goethite Stalactites - Morocco

Vanadinite is a mineral belonging to the apatite group of phosphates, with the chemical formula Pb5(VO4)3Cl. It is one of the main industrial ores of the metal vanadium and a minor source of lead. A dense, brittle mineral, it is usually found in the form of red hexagonal crystals.

The lead and vanadium in the vanadinite can be harmful if absorbed into the blood stream by inhalation or ingestion. The crystals won't pose a health hazard just sitting on a shelf, but it's recommended that you wash your hands after handling.

Known since ancient times, Goethite is a beautiful dark gray to black iron-based mineral that can take many forms. It was used in antiquity as a pigment for painting and has even been found in the famous caves at Lascaux, France.