| 15dm1247 ((CHALCANTHITE)), $10 MINIMUM BID, Bertha Mine, Tooele County, Utah, 7 x 4 x 2 cm Cabinet, | |
 | Here is specimen of delicate blue crystals of the copper sulphate, Chalcanthite. Chalcanthite is water soluble and poisonous if eaten or mixed into a fish tank. Large blue man grown Chalcanthite crystals are available at many Mineral shows just like Bismuth and Alum. ex Dennis McMurdie collection. |
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