Formula: Pb9Cu(Sb,As)11S26
Sulpharsenite
Crystal System: Monoclinc
Specific gravity: 5.52 calculated
Hardness: 3½ to 4
Streak: Black
Colour: Lead grey
Environments:
Sorbyite is of hydrothermal origin in marble or
limestone, replacing pyrite and
sphalerite and associated with with other
lead-arsenic-antimony
sulphides
(Webmin).
Localities
At the type locality, the Taylor Pit, Huntingdon Township, Madoc area, Hastings County, Ontario, Canada, sorbyite is of hydrothermal
origin, in a deposit in marble. Associated minerals include
boulangerite, jamesonite,
antimony-rich
baumhauerite, zinkenite,
semseyite, geocronite and
robinsonite
(HOM).
At Novoye, Khaidarkan Sb-Hg deposit, Fergana Valley, Alai Range, Osh Oblast, Kyrgyzstan, sorbyite occurs in a hydrothermal deposit
in limestone, replacing pyrite and
sphalerite, with other
lead-arsenic-antimony
sulphides. Associated minerals include
sphalerite, pyrite,
galena, playfairite,
twinnite, guettardite,
baumhauerite, realgar,
orpiment, cinnabar,
fluorite and quartz
(HOM).
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