Krivovichevite
Krivovichevite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Pb₃Al(OH)₆(SO₄)(OH).
It crystallizes in the hexagonal crystal system (space group R3c).
Key properties: Mohs hardness 3; specific gravity 5.37; White streak; Vitreous luster; optically uniaxial.
IMA symbol Kvv, IMA status: approved, named in 2004.
A low-temperature hydrothermal alteration product of galena and natrolite by oxidizing solutions in a zoned pegmatite vein within lujavrite.
It is found associated with Galena, anglesite, cerrusite, hydrocerussite, lanarkite, leadhillite.
The mineral was named to honor Sergey Vladimirovich Krivovichev (b. 1972), Professor of mineralogy and crystallography, St. Petersburg State University, 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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