Kudriavite. Field of view 4 mm. From: Mutnovsky volcano, Kamchatka Krai, Russia. — Photo: Leon Hupperichs · CC BY-SA 3.0
Kudriavite
Kudriavite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula (Cd,Pb)Bi₂S₄.
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: specific gravity 6.578; Black streak; Metallic luster; optically uniaxial.
IMA symbol Kdv, IMA status: approved, named in 2003.
Occurs as high-temperature (~ 400 flC) fumarole encrustations on the inner wall of an active andesitic stratovolcanic crater.
It is found associated with Cannizzarite, greenockite, pyrite, sulfur.
The name refers to the volcano from which the first specimens were collected.
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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