Borodaevite
Borodaevite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula Ag₄.₈₃Fe₀.₂₁Pb₀.₄₅(Bi,Sb)₈.₈₄S₁₆.
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: specific gravity 7.9; Black streak; Metallic luster.
IMA symbol Bdv, IMA status: approved, named in 1991.
Found in a hydrothermal Sn–W deposit.
It is found associated with Matildite, gustavite–andorite, aramayoite, galena, pavonite, ramdohrite, owyheeite, benjaminite, molybdenite, hübnerite, triplite, quartz.
The mineral was named to honor Yuri Sergeevich Borodaev (1923–), Russian mineralogist, Moscow State University, Moscow, Russia.
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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