Arsenopyrite

Intergrown group of doubly-terminated striated crystals of Arsenopyrite some 50 mm long and 40 mm across, perched on knobbly white Muscovite.

Product details

SpeciesArsenopyrite, Muscovite

SizeSmall Cabinet

Dimensions7.5 x 6.4 x 6.0 cm

Weight75 grams

Added on02/22/2026

LocalityChina, Hunan, Yaogangxian Mine

Current owner

David Lucas

Member since 2025

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Mineral guide

Learn about Arsenopyrite

steel-gray, mirror-bright prismatic crystals; prized for sculptural form and heft, with top localities (Panasqueira, Dalnegorsk, Yaogangxian) in…

Regional guide

Arsenopyrite from Yaogangxian Mine, China

Yaogangxian arsenopyrite is one of the great modern examples of a species that collectors once tended to treat as an accessory. At this Hunan tungsten-tin mine, arsenopyrite can be the star: steel-gray to battleship-gray crystals in sharp prismatic wedges, flattened “diamond” forms, doubly terminated parallel groups, and chunky metallic plates that have the visual weight of ore and the geometry of display-quality crystallization. The best pieces are not merely “arsenopyrite present”; they show crisp, architectural crystals standing on quartz, muscovite, fluorite, or mixed sulfide matrix with enough contrast to read from across a cabinet.

Locality guide

Yaogangxian Mine

A collector's guide to Yaogangxian Mine, China: its geology, mining history and notable minerals, illustrated with the 1584 specimens documented from this locality on EarthWonders.

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