Antimony, Native

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Antimony, Native

 

a mineral composed of Sb and sometimes having admixtures of As, Bi, and Ag (up to 5 percent). Native antimony crystallizes in the trigonal system and occurs as granular masses, sinters, and rhombohedral lamellar crystals. The mineral is tin white with yellow iridescence and has a metallic luster. Native antimony has a hardness on Mohs’ scale of 3–3.5; it is brittle and has a density of 6,610–6,730 kg/m3.

Antimony is formed from a deficiency of S in low-temperature hydrothermal antimony, antimony-gold-silver, and copper-lead-zinc-antimony-silver-arsenic deposits, as well as in high-temperature pneumatolytic-hydrothermal antimony-silver-tungsten deposits. In the latter case, the content of Sb may be of commercial importance, as in the deposits at Seinäjoki, Finland.

REFERENCES

Mineraly: Spravochnik, vol. 1. Moscow, 1960.
Pääkkönen, V. On the Geology and Mineralogy of the Occurrence of Native Antimony at Seinäjoki. Helsinki, 1966.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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