Disulfodadsonite
Disulfodadsonite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula Pb₁₁Sb₁₃S₃₀(S₂)₀.₅.
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Dadsonite structural group.
Key properties: specific gravity 5.898; Black streak; Metallic. Anisotropism: Weak, brown to dark blue. - luster.
IMA symbol Ddad, IMA status: approved, named in 2011.
Found in pockets with high sulfur fugacity during hydrothermal alteration of marble.
It is found associated with Boulangerite, calcite, sphalerite.
The name refers to the relationship to dadsonite and the presence of the disulfide ion in the crystal structure.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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