| 5718 11btrmnr ((COQUIMBITE, COPIAPITE, CHALCANTHITE, ALUNOGEN)), $15 MINIMUM BID, Javier Mine, Ayacucho Department, Peru, 10 x 7 x 5 cm, Cabinet, | |
 | Here is a water soluble purple species, Coquimbite, an iron sulphate. These excellent specimens came from a find in Peru 5 years ago. The white is Alunogen. The blue is Chalcanthite. The yellow is Copiapite. |
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