Vauquelinite
A variety of Minerals

What is Vauquelinite?
Vauquelinite is a complex mineral with the formula CuPb2(CrO4)(PO4)(OH) making it a combined chromate and phosphate of copper and lead. It forms a series with the arsenate mineral fornacite. It was first described in 1818 in the Beryozovskoye deposit, Urals, Russia, and named for Louis Vauquelin (1763–1829), a French chemist. It occurs in oxidized hydrothermal ore deposits and is associated with crocoite, pyromorphite, mimetite, cerussite, beudantite and duftite at the type locality in Russia.
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Quick Facts
Physical Properties
- Color
- Olive-green, apple-green, brown to nearly black
- Hardness (Mohs)
- 2.5 - 3
- Density
- 6.16 g/cm³
- Streak
- Greenish or brownish
Chemical Properties
- Chemical Formula
- Pb2Cu(CrO4)(PO4)(OH)
- Elements
- Cr, Cu, H, O, P, Pb
Also Known As

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