20hhgd.is ((CHALCANTHITE)), $60 MINIMUM BID, Rodalquilar, Níjar, Almería, Andalusia, Spain, 5 x 2.5 x 1.5 cm, Miniature | |
Excellent vivid blue natural Chalcanthite from Spain. Chalcanthite is Copper Sulfate and water soluble. This may be the world's best locality for natural Chalcanthite. When back lit it glows like a gem crystal. ex Glen Davidson collection. |