By Chisom Ibemere
Vanadinite is a dense, brittle mineral, which is usually found in the form of red hexagonal crystals. Vanadinite is commonly found in arid climates and is composed of lead vanadate.
It was discovered in the 19th century in Mexico specifically in the mines of Zimapán, Hidalgo. The name “vanadinite” is derived from its vanadium content.
Vanadinite occurs in arid or desert-like regions, with notable deposits in countries such as Morocco, Australia, South Africa, and the United States (Arizona and New Mexico).
It occurs in oxidised lead deposits, forming as a secondary mineral in the oxidation zone.
Vanadinite is composed of lead vanadate and belongs to the apatite group of minerals. It has a prismatic, hexagonal, and elongated crystal structures. They can occur as single crystals or form clusters and druzy coatings.
The color ranges from red to orange or yellow, depending on impurities. It has a hardness of 2.75 to 3 on the Mohs scale and density ranges from 6.8 to 7.2 g/cm³.
Vanadinite crystals are typically transparent to translucent. They have a resinous to adamantine luster.
Vanadinite is used for industrial and aesthetic purposes. It is used in the Industry, as a valuable source of vanadium, for the production of high-strength steel and as a catalyst in certain chemical reactions.
Vanadinite is also sought after by mineral collectors and lapidaries for its beautiful crystal formations and vibrant red, orange, or yellow color. It is often used in jewelry, decorative objects, and as a specimen for display.
The global value of vanadinite is primarily based on its use as a mineral specimen and gemstone. Fine-quality vanadinite specimens with well-formed crystals and intense colors are highly valued by collectors. Its scarcity and unique appearance contribute to its desirability and market value.
Additionally, vanadinite’s industrial value as a vanadium source adds to its overall global worth. The commercial value of vanadinite is relatively niche, primarily centered around the mineral and gemstone market.