from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing arsenic, silver, and sulfur.
from The Century Dictionary and Cyclopedia
- n. A rare mineral species from the dolomite of the Binnenthal, Switzerland. It occurs in light-red monoclinic crystals with adamantine luster, and contains sulphur, arsenic, and silver. Its formula is prooably AgAsS2.
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