Empressite

Script error: No such module "other uses". Template:Short description Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". Empressite or tellursilberblende is a mineral form of silver telluride, AgTe. It is a rare, grey, orthorhombic mineral with which can form compact masses, rarely as bipyramidal crystals.

Recent crystallographic analysis^[1] has confirmed that empressite is a distinct mineral with orthorhombic crystal structure, different from the hexagonal Ag_5−xTe₃ with which empressite has been commonly confused in mineralogy literature. At the same time, empressite does not appear on the equilibrium Ag-Te phase diagram,^[2] and therefore it is only metastable at ambient conditions. Given infinite time, it would phase separate into pure Ag₅Te₃ and pure Te.

The name empressite comes from the location of its discovery – the Empress Josephine mine, Saguache County, Colorado, US. It was first described in 1914.^[3]

References

↑ L. Bindi et al., American Mineralogist, 89, 1043 (2004)
↑ Karakaya, I., Thompson, W.T.: J. Phase Equilibria 12, 56 (1991).
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[1] L. Bindi et al., American Mineralogist, 89, 1043 (2004)

[2] Karakaya, I., Thompson, W.T.: J. Phase Equilibria 12, 56 (1991).

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Empressite

References

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