Bortnikovite
Bortnikovite is an IMA-recognized mineral species in the native element class, with the chemical formula Pd₄Cu₃Zn.
It crystallizes in the tetragonal crystal system (space group P4/mmm).
Key properties: specific gravity 11.16; Metallic luster.
IMA symbol Bnk, IMA status: approved, named in 2006.
Occurs as rims on isoferroplatinum grains in alluvial placer sediment derived from a concentrically zoned, alkaline ultramafic massif.
It is found associated with Isoferroplatinum, titanite, perovskite, V-bearing magnetite, bornite, chlorite.
The mineral was named to honor Professor Nikolai Stefanovich Bortnikov, mineralogist and researcher at the Russian Academy of Sciences.
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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