Antarcticite: a new mineral, calcium chloride hexahydrate, discovered in Antarctica

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Antarcticite: a new mineral, calcium chloride hexahydrate, discovered in Antarctica

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A new mineral, calcium chloride hexahydrate, was discovered in Don Juan Pond, Wright Valley, Victoria Land. The optical properties, chemical analysis and power patterns obtained by X-ray diffraction agree with those of artificial calcium chloride hexahydrate. The name antarcticite is proposed for the new mineral. The results of chemical analysis and X-ray power diffraction of the mineral, and chemical analysis and specific gravity of pond water are tabulated. In addition to the minor constituents Mg, Na, and K, the presence of Sr was confirmed by emission-arc spectral analysis. The concentration of the solution and the crystallization of the salts in the pond may have been effected by low temperatures and extremely dry climate.
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149 (3687):975-977
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Torii, T.; Ossaka, J. Antarcticite: a new mineral, calcium chloride hexahydrate, discovered in AntarcticaScience149 (3687):975-9771965