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Nevadaite

Named for the state of its discovery, Nevada, in the United States, with the type locality at the Gold Quarry mine near Carlin. Nevadaite has on other locality in Kyrgyzstan at Kara-Chagyr Mountain. It appears as pate green to turquoise blue prismatic crystals in radiating clusters, spherules, or druses in association with fluellite, wavellite, strengite, variscite, hewettite, anatase, kazakhstanite, tinticite, leucophosphite, torbernite, and tyuyamunite.

Ref. Cooper, M. A., et al. and The Canadian Mineralogist June 2004 v. 42 no. 3 p. 741-752

Nickelaustinite

Named for the nickel-dominant chemical composition and its relationship to austinite. Nickelaustinite finds its type locality in the Bou Azzer district of Morocco and additionally has a couple newer localities in Greece and Germany. This rare mineral occurs on dolomite and is associated with roselite, calcite, chalcopyrite, and skutterudite.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/nickelaustinite.pdf

Nickelhexahydrite

Named as being the nickel-rich analogue of hexahydrite. An uncommon mineral, Nickelhexahydrite occurs as a precipitate from mine waters in open pit nickel miners as well as in oxidized zones of nickel-bearing rocks. It additionally forms in shear zones in talc with associated ultramafic rocks and can be formed from water solutions of less than 31.5 degrees Celsius. It occurs in localities in Russia, Finland, Switzerland, Bosnia-Herzegovina, the Czech Republic, Germany, and Australia. Nickelhexahydrite is soluble in water.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/nickelhexahydrite.pdf

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