9fhcer ((CHALCANTHITE)), $15 MINIMUM BID, Cerro de Pasco, Peru, 14 x 6 x 4 cm, Cabinet, | |
Large specimen of blue Chalcanthite which is Copper Sulphate from Peru. Chalcanthite dessicates and this one has a white coating but the center is still the hydrated Chalcanthite. Old specimen. Not to be confused with the current lab grown crystals from Poland available at most shows and sometimes misrepresented as being natural and not lab grown. ex Philadelphia Academy of Science #19822. copy of label. |