marmatite


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marmatite

[′mär·mə‚tīt]
(mineralogy)
A dark-brown to black mineral composed of iron-bearing sphalerite. Also known as christophite.
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References in periodicals archive ?
The primary zinc mineral is marmatite, with pyrite and pyrrhotite also in abundance.
Mineralization consists of marmatite, galena, and pyrite.
The mineralogy is moderately complex and principal sulphide minerals are marmatite (ZnFeS), pyrrhotite (FeS), cassiterite ([SnO.sub.2]), and stannite ([Cu.sub.2] [FeSnS.sub.4]).