calaverite


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calaverite

(kəˈlævəˌraɪt)
n
(Minerals) a metallic pale yellow mineral consisting of a telluride of gold in the form of elongated striated crystals. It is a source of gold in Australia and North America. Formula: AuTe2
[C19: named after Calaveras, county in California where it was discovered]
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Godolphin's Calaverite (James McDonald) and Ottoman (Sam Clipperton) take their chances in the A$500,000 Sykes Stakes over 1,200 metres earlier on the card.
This paper underlines the mineralogical characteristics of these deposits by pyrite presence as the main mineral, either disseminated or as sulphur; the absence of arsenopyrite and the occurrence of a variety of minerals such as gold, silver, lead, bismuth and nickel of the telluride's group: Petzite, Calaverite, Silvanite, Hessite, Bolinskite, Shtiutzite, Melonite, and altaite, as well as the presence of gold of high purity and electrum (Torres et al.
In Table II, the study of the mineral composition of the ores demonstrated that the finest gold of high purity is present, as well as gold and silver in form of telluride's Calaverite (Au[Te.