Acanthite Ag2SLocality:Mascot Mine (Gorham Lead mine
Acanthite Ag2SLocality:Mascot Mine (Gorham Lead mine; Galena King mine), Gorham, Coos Co., New Hampshire, USALargest crystal 0.5 mmTom Mortimer’s PhotoAcanthite is a form of silver sulfide a common silver mineral in moderately low-temperature hydrothermal veins and in zones of supergene enrichment. Typically found as pseudo-cubic and pseudo-octahedral crystals, paramorphic after argentite. -- source link
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