Edenharterite

edenharterite

baumhauerite

wallisite

hutchinsonite

Images

Formula: TlPbAs₃S₆
Valence: Tl¹⁺Pb²⁺As³⁺₃S^2-₆
Sulphosalt, sulpharsenite, thallium- bearing mineral
Crystal System: Orthorhombic
Specific gravity: 5.09 calculated
Hardness: 2½ to 3
Streak: Red
Colour: Brownish black
Common impurities: Sn
Environments

Hydrothermal environments

Edenharterite was approved in 1987 but to date (January 2026) it has been reported only from the type locality.

Localities

At the type locality, the Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland, edenharterite occurs as lathlike crystals in a hydrothermal deposit in dolostone. Associated minerals include baumhauerite, realgar, orpiment, hutchinsonite, hatchite, wallisite, lorándite, sartorite, jentschite, erniggliite, stalderite and bernardite (Mindat, HOM).
Edenharterite from the Lengenbach Quarry - Image

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