Vauquelinite

Vauquelinite is a complex mineral with the formula CuPb₂CrO₄PO₄OH making it a combined chromate and phosphate of copper and lead. Discovered in 1818 in the Beryozovskoye deposit, Urals, Russia, it is named after Louis Vauquelin (1763-1829), a French chemist.

References

* Mindat
* Webmineral