Gem, Rock, and Mineral Postage Stamps Featuring
Plancheite


Mineral Name: Plancheite

Composition: Hydrated copper silicate hydroxide

Nomenclature: Named after J. Planche, who brought the mineral from the Congo.

Industrial Uses: Copper ore.



Comoro Islands : Scott 930g : 375 francs : 1998

Plancheite