12btrm.ir ((COQUIMBITE, COPIAPITE, ALUNITE)) $25 MINIMUM BID, Javier Mine, Huac-huas, Lucanas Province, Ayacucho, Peru, 8 x 4 x 3 cm, Cabinet | |
Excellent lustrous and gemmy glassy hexagonal crystals of purple Coquimbite with associated yellow Copiapite and white Alunite. These are sulphate species and hence water soluble. Do not wash in water or they will dissolve and or discolor |