Beaverite-(Zn)
Beaverite-(Zn) is an IMA-recognized mineral species in the sulfate class, with the chemical formula Pb(Fe³⁺₂Zn)(SO₄)₂(OH)₆.
It crystallizes in the hexagonal crystal system (space group R-3m). It is a member of the Alunite-Alunite structural group.
Key properties: specific gravity 4.25; Yellow ochre streak; Vitreous to subadamantine luster.
IMA symbol Bvr-Zn, IMA status: approved, named in 2010.
Found as a secondary mineral in the oxidized zone of a hydrothermal Cu-Pb-Zn ore deposit.
It is found associated with Anglesite, galena, pyrite, sphalerite, quartz.
As the Zn-analogue of beaverite-(Cu), [Pb(Fe2Cu)(SO4)2(OH)6].
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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