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Azure spar, sometimes azur-spar, is a trivial and commercial, partly obsolete name for several of the most famous bright blue or blue-colored minerals, which also have similar names, most notably for lazurite and azurite, [1]: 14 and also for the less commonly used lazulite. [2]: 248
Download as PDF; Printable version; In other projects Wikidata item; ... Azurite: 2CuCO 3 ·Cu(OH) 2: 55.1 Cuprite: Cu 2 O: 88.8 Chrysocolla (Cu,Al) 2 H 2 Si 2 O 5 ...
Azurite or Azure spar [5]: 14 is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite , after the type locality at Chessy-les-Mines near Lyon , France . [ 3 ]
Straits Resources sold the mine to Venturex Resources in 2010, after having been depleted and closed the mine in October 2009. [4]Venturex sold 80 percent of the project to Aurora Minerals in 2020, Venturex retaining 20 percent, for A$3.15 million and an obligation to spend A$4 million on the project and to manage it.
Lazurite, old name Azure spar [7]: 14 is a tectosilicate mineral with sulfate, sulfur and chloride with formula (Na,Ca) 8 [(S,Cl,SO 4,OH) 2 |(Al 6 Si 6 O 24)].It is a feldspathoid and a member of the sodalite group.
Above the water table, chalcocite has been oxidized to malachite, azurite, tenorite, and cuprite. [60] On November 30, 2007, Constellation announced that it would stop mining in 2008, because of unexpectedly low copper recovery.
The Bagdad Mine is a large copper mine located in Arizona, in the southwestern part of the United States.Bagdad represents one of the largest copper reserves in the United States and in the world, having estimated reserves of 873.6 million tonnes of ore grading 0.36% copper. [1]