Arsenic

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Good thumbnail for the species, this is a ball of crudely crystallized native arsenic. The species is rarely seen crystallized, this is the classic locality for this material. The specimen comes with an old label from Ward's Natural Science Establishment in Rochester, New York.The Akadani Mine in Fukui City, Japan, is globally famous among mineral collectors as the premier historical locality for exceptionally rare, well-formed crystallized native arsenic specimens, which typically form distinctive radial or spherical clusters rather than the more common massive or botryoidal habits found elsewhere. Active primarily in the late 19th and early 20th centuries, this classic mine yielded unique hydrothermal vein formations containing outstanding crystalline clusters that remain highly prized by international collectors today due to their unmatched aesthetic quality and distinct scarcity.