Vanadinite n. : A mineral occurring in yellowish, and ruby-red hexagonal crystals. It consist of lead vanadate with a small proportion of lead chloride.

Example:


Taxonomy
Mineral Vanadinite, vanadium, minerals, 2007-06-26, Pb5, 3Cl, free encyclopedia, VO4, unit cell, new element, 2007-06-09, Morocco, chemical formula, orange-red, red-brown, grey, colourless, hardness.

Defination from the web:
vanadinite deposits have since been unearthed in South America, Europe, Africa, and other parts of ... Deposits of vanadinite are now found worldwide including Austria, Spain, Scotland, the Ural Mountains, South Africa, Namibia, Morocco, Argentina, ...