spertiniite
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Spertiniite is a rare copper hydroxide mineral. Chemically, it is copper(II) hydroxide with the formula Cu(OH)2. It occurs as blue to blue-green tabular orthorhombic crystal aggregates in a secondary alkaline environment altering chalcocite. Associated minerals include chalcocite, atacamite, native copper, diopside, grossular, and vesuvianite.
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- Spertiniite15881.jpg
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- chemical formula
- Cu(OH)₂
- Nickel-Strunz 9th edition (updated 2009)
- 4.FD.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.FD.05
- Commons category
- Spertiniite
- IMA Mineral Symbol
- Sni
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- Discovery and occurrence
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Spertiniite is a rare copper hydroxide mineral. Chemically, it is copper(II) hydroxide with the formula Cu(OH)2. It occurs as blue to blue-green tabular orthorhombic crystal aggregates in a secondary alkaline environment altering chalcocite. Associated minerals include chalcocite, atacamite, native copper, diopside, grossular, and vesuvianite.
==Discovery and occurrence== It was first described in 1981 for an occurrence in the Jeffrey Mine of the Johns-Manville mine, Val-des-Sources, Quebec. It was named for mine geologist Francesco Spertini (born 1937). In addition to the type locality, it has also been reported from Mont Saint-Hilaire, Quebec; Ely, White Pine County, Nevada; and Bisbee, Cochise County, Arizona. It has been reported from Dzhezkazgan, Kazakhstan; from slag at Juliushutte, Astfeld, Harz Mountains, Germany; and from Tsumeb, Namibia.