Vulcanite

vulcanite

rickardite

petzite

tellurium

Images

Formula: CuTe
Telluride of copper
Specific gravity: 7.1 calculated
Hardness: 1 to 2
Colour: Bronze-yellow
Environments

Metamorphic environments
Hydrothmal environments

Localities

At the Byngovsky Deposit, Nevyansky District, Sverdlovsk Oblast, Russia, vulcanite is associated with rickardite, petzite and sylvanite (HOM).

At the type locality, the Good Hope Mine, Vulcan, Vulcan Mining District, Gunnison county, Colorado, USA, vulcanite has been found in fragments of mineralised rock cemented by rickardite, vulcanite, and native tellurium. Intergrown rickardite and vulcanite form a layer 0.5 to 3 mm thick encrusting each rock fragment. In general, rickardite predominates in the outer part of the layer, next to the rock fragments, whereas vulcanite predominates in the inner part. Tellurium fills the remainder of the spaces between fragments and forms scattered minute grains and small patches in the rickardite-vulcanite crusts as well (AM 46.258-268).
The Mammoth Good Hope/Vulcan deposit is a quartz vein enclosed by quartz-chlorite and quartz-sericite schist (Mindat).

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