Mineral Species: Vesignieite
Chemical Formula: BaCu3++(VO4)2(OH)2
Chemical Name: Barium Copper Vanadate
Mineral Class: Vanadate
Mineral Notes: Vesigneite is a rare vanadate discovered in the 1950s in Thuringia, Germany. It occurs as a secondary mineral formed in copper-bearing vanadium deposits. It was named after Louis Vésignié (1870-1954) a noted French mineral collector and President of the Mineralogical Society of France.
Description: Extensive flakes of Vesignieite on a grey matrix. The mineral ranges in colour from pale to dark green. Magnification shows good crystalline form and a waxy luster.
Location: Newcliffe Hill Quarry, Stanton, Leicestershire, England.