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Berryite is a mineral with the formula Pb3(Ag,Cu)5Bi7S16. It occurs as gray to blue-gray monoclinic prisms. It is opaque and has a metallic luster. It has a Mohs hardness of 3.5 and a specific gravity of 6.7.
Additional recommended knowledge
It was first identified in 1965 using X-ray diffraction by mineralogist Leonard Gascoigne Berry (1914-1982). It is found in Park and San Juan counties in Colorado. It occurs in sulfide bearing quartz veins in Colorado and with siderite-rich cryolite in Ivigtut, Greenland.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Berryite". A list of authors is available in Wikipedia.|