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Sulfosalt

Chabournéite

AgzTl₈₋ₓ₋zPb₄₊₂ₓSb₄₀₋ₓ₋ᵧAsᵧS₆₈ (with 0.00 ≤ x ≤ 0.40, 16.15 ≤ y ≤ 19.11, 0.04 ≤ z ≤ 0.11)
Crystal systemTriclinic
ClassSulfosalt
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Chabournéite specimen

Black, stellar aggregates of chabournéite on dolomite. Field of view 1.2 mm. From Lengenbach quarry. — Photo: M. Crumbach · CC BY 4.0

Chabournéite

Chabournéite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula AgzTl₈₋ₓ₋zPb₄₊₂ₓSb₄₀₋ₓ₋ᵧAsᵧS₆₈ (with 0.00 ≤ x ≤ 0.40, 16.15 ≤ y ≤ 19.11, 0.04 ≤ z ≤ 0.11).

It crystallizes in the triclinic crystal system (space group P1). It is a member of the Chabournéite structural group.

Key properties: specific gravity 5.104; Red-brown streak; Submetallic to greasy luster.

IMA symbol Chb, IMA status: approved, named in 1976.

Found in a hydrothermal deposit in dolomitic limestones with other As–Tl minerals (Jas Roux, France).

It is found associated with Pierrotite, parapierrotite, stibnite, pyrite, sphalerite, twinnite, zinkenite, madocite, andorite, smithite, laffittite, routhierite, aktashite.

The name refers to Chabournéou Glacier, near the Jas Roux deposit, France.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more C minerals or help write this entry.