36293: Alum-(K) - $12 Silver Peak, Silver Peak Mining District, Esmeralda County, Nevada Small cabinet - 7.0 x 5.1 x 3.5 cm 76 grams Specimen status: Available Send an email with specimen number to order A generous sample of somewhat friable,
crystalline alum - KAl(SO4)2ยท12H2O.
Water soluble. Not the prettiest mineral specimen, but a
necessary component of any locality or systematic mineral
collection.
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