Cadmoindite

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Cadmoindite
Cadmoindite.jpg
Cadmoindite, from Kudriavy Volcano, Far Eastern Region, Russian Federation
General
Category Sulfide mineral
Thiospinel group
Spinel structural group
Formula
(repeating unit)
CdIn2S4
Strunz classification 02.DA.05
Crystal symmetry Isometric hexoctahedral
H-M symbol (4/m 3 2/m) space group Fd3m
Unit cell a = 10.81 Å; Z = 8
Identification
Formula mass 470.32 g
Color Black to dark brown
Crystal habit Microscopic octahedral crystals
Crystal system Cubic
Fracture Conchoidal
Luster Adamantine
Diaphaneity translucent
Optical properties Isotropic
References [1] [2]

Cadmoindite (CdIn2S4) is a rare cadmium indium sulfide mineral discovered in Siberia around the vent of a high-temperature (450–600 °C) fumarole at the Kudriavy volcano, Iturup Island in the Kuril Islands. It has also been reported from the Kateřina Coal Mine in Bohemia, Czech Republic.[2]

References[edit]