Tennantite-(Hg)

tennantite-(Hg)

tennantite

sinnerite

realgar

Images

Formula: Cu₆(Cu₄Hg₂)As₄S₁₃
Sulpharsenite, tetrahedrite group
Crystal System: Isometric
Specific gravity: 4.838 calculated
Hardness: 3½ to 4
Colour: Black
Environments

Metamorphic environments

Tennantite-(Hg) is a new mineral, approved in 2020.

Localities

At the type locality, Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland, tennantite-(Hg) was identified as an aggregate of black metallic tetrahedral crystals, less than 0.1 mm in size, intimately associated with sinnerite, and grown on realgar (MM 85.5.744-751).

Tennantite-(Hg) from Lengenbach - Image

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