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Formula: Cu6WSnS8
Sulphide of copper, tungsten and
tin
Crystal System: Isometric
Specific gravity: 4.934 calculated
Hardness: 4
Colour: Pale grey-brown
Common impurities: Fe,V,Sb,Se
Environments
Localities
There are two co-type localities, the Kidd Mine, Kidd Township, Timmins, Cochrane District, Ontario, Canada, and the
Campbell Mine, Bisbee, Cochise County, Arizona, USA.
At the Kidd Mine, Kidd Township, Timmins, Cochrane District, Ontario, Canada, kiddcreekite occurs as irregular
grains up to 100 microns across in a bornite-rich ore zone on the 1200 level.
Ore from the bornite zone formed a very small part of the total ore mined from
this level. The bornite-rich ore, which is particularly complex in its
mineralogy, is characterised by the presence of macroscopic amounts of
tennantite, carrollite and, in
places, clausthalite. Kiddcreekite has been found in four polished
sections cut from a hand specimen. The mineral commonly rims scheelite
in a matrix of clausthalite or
tennantite or both. In turn,
tungstenite forms nearly complete rims around kiddcreekite. Other
associated minerals are mawsonite,
chalcopyrite and pyrite. The
minerals identified in the original kiddcreekite specimen include bornite,
chalcopyrite, tennantite,
pyrite, carrollite,
naumannite, mawsonite,
chalcocite, colusite,
bohdanowiczite, eucairite,
electrum, sphalerite,
fischesserite, roquesite and
tungstenite. The grain of kiddcreekite occurs in contact with
sphalerite, chalcopyrite,
bornite and tennantite.
(CM 22.2.227-232).
Kiddcreekite from the Kidd Mine -
Image
At the Campbell Mine, Bisbee, Cochise County, Arizona, USA, grains of kiddcreekite were found in five polished
sections cut from drill core from the Campbell orebody. All of them occur in
pyrite as discrete anhedral grains, usually less than 50 microns across, as
irregular cores to zoned subhedral grains of colusite (less than 50 microns),
and as compound intergrowths with colusite,
tungsten-bearing colusite,
stützite and altaite (less than
120 microns)
(CM 22.2.227-232).
Kiddcreekite from the Campbell Mine -
Image
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