Karpinskite
Karpinskite is an IMA-recognized mineral species in the silicate class, with the chemical formula (Mg,Ni)₂Si₂O₅(OH)₂.
It is a member of the Corrensite structural group.
Key properties: Mohs hardness 2.5–3; specific gravity 2.53–2.63; Dull to weakly greasy luster; optically biaxial.
IMA symbol Kpi, IMA status: questionable, named in 1956.
Occurs as veinlets in \kerolitized" serpentinite.
The name refers to Alexander Petrovich Karpinsky (1847–1936), Russian geologist and President of the Russian Academy of Sciences, 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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