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Laboratory Grown Alum Specimens

CO-ALU4 Laboratory grown Alum specimens, approximately 2.25 - 2.5 inches long. Each one unique.
Availability: In stock


Alum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate with the formula KAl(SO 4)2·12H 2O.

Alum is soluble in water! Do not place your specimen in water. Keep in a dry location or inside a plastic bag to protect it. These Alum specimens are grown in the laboratoruy in Poland. They display excellent crystal structure and color.

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