polybasite


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polybasite

[‚päl·i′bā‚sīt]
(mineralogy)
(Ag,Cu)16Sb2S11 An iron-black to steel-gray metallic-looking mineral; an ore of silver.
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24, 1998, the distinct bands of sulphides have now doubled to over 20 centimeters in width and there are an additional four bands of this exceptionally high grade polybasite.
There are now two distinct bands near the left wall and near the center that has over 80 percent sulphides (90 percent polybasite with 10 percent chalcopyrite as inclusions) each of these bands is at least 10 cm in width.
The `Massive Sulphide horizons' consist of bands of one to two centimeter thick aligned laths of polybasite separating half-centimeter bands of limy skarn with small pockets of the sulphide.
In the central portion the predominate sulphide is polybasite with some chalcopyrite as inclusions.