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Archive for September, 2011

Jarandolite

Thursday, September 29th, 2011

The chemical formula of mineral Jarandolite is indicated by Ca[B3O4(OH)3]. This is commonly found at mixed volcanic-sedimentary deposits with borate deposits and occuring predominantly in the tuffaceous deposits with thicknesses from 1 to 12 m. Jarandolite Jarandolite is structurally and chemically similar t o colemanite. This mineral is commonly found at its type of locality […]

Jalpaite

Thursday, September 29th, 2011

The chemical formula of mineral Jalpaite is indicated by Ag3CuS2. This mineral usually forms under low-temperature hydrothermal conditions. This mineral is most commonly found at its type of locality in the USA, in Colorado, at the Payrock mine in Silver Plume, Clear Creek Co. Jalpaite was named for the Mexican locality at Jalpa. Jalpaite is […]

Jagueite

Thursday, September 29th, 2011

The chemical formula of Jagueite is indicated by Cu2Pd3Se4. This mineral commonly occurs at telethermal selenide vein-type deposit. Jagueite is also considered as Cu-analogue of Chrisstanleyite and structure determined. Mineral Jagueite is commonly found occurring at its type of locality at El Chire prospect, Los Llantenes District of La Rioja Province, Argentina. Jagueite was named […]

Jagowerite

Thursday, September 29th, 2011

The chemical formula of mineral Jagowerite is indicated by BaAl2(PO4)2(OH)2. This mineral is commonly found in quartz veins filling tension fractures in carbonaceous argillite. Jagowerite is commonly found from a locality about 25 km north of the Hess River, N.T.S. area 105-N-7, Yukon Territory, Canada. Mineral Jagowerite was named for John Arthur Gower (1921-1972), Professor […]

Jagoite

Thursday, September 29th, 2011

The chemical composition of mineral Jagoite is indicated by the formula (Pb,Na,Ca)3(Fe+++,Mg)Si3O10(Cl,OH). This mineral is usually found occurring in hematite ores. Jagoite is commonly found at its type of locality at Lanban, Varmland, Sweden. Mineral Jagoite was named for John B. Jago Trelawney (1909-), mineral collector of Palo Alto, California, USA. Mineral Jagoite is known […]

Jaffeite

Thursday, September 29th, 2011

The chemical formula of mineral Jaffeite is indicated by Ca4(Si3O7)(OH)6. This mineral Jaffeite is a naturally occurring analog of “TSH” (Tricalcium Silicate Hydrate), a component of portland cement. Jaffeite is commonly found at Kombat mine, located 37 km east of Otavi and 49 km south of Tsumeb in the north-central part of Namibia. Jaffeite was […]

Jadarite

Thursday, September 29th, 2011

The chemical formula of mineral Jadarite is indicated by LiNaB3SiO7(OH). This mineral was discovered in drill core. The Jadar Basin is composed of a sequence of oil-shales, dolomicrites and pyroclastic deposits of Neogene (Early to Middle Miocene) age. This is a new structure type. Mineral Jadarite is commonly found at its type of locality at […]

Jacquesdietrichite

Thursday, September 29th, 2011

The chemical formula of mineral Jacquesdietrichite is indicated by Cu2[BO(OH)2](OH)3. Jacquesdietrichite is known to be of hydrothermal origin found in small cavities in gaudefroyite-calcite rock and as inclusions in calcite. Jacquesdietrichite is commonly found at Tachgagalt vein Mn deposit near Ouarzazate, Morocco. Jacquesdietrichite was named for Jacques Emile Dietrich (1926-), French geologist who collected the […]

Jacobsite

Thursday, September 29th, 2011

The chemical composition of mineral Jacobsite is indicated by the formula Mn2+0.6Fe2+0.3Mg0.1Fe3+1.5Mn3+0.5O4. Jacobsite is considered as a primary mineral or and alteration product of othe rmanganese-bearing minerals in some metamorphosed Mn deposits. Jacobsite is also found dimorphous with iwakiite and forms a series with magnetite. This mineral is commonly found from its type of locality […]

Jachymovite

Thursday, September 29th, 2011

The chemical formula of mineral Jachymovite is indicated by (UO2)8(SO4)(OH)14•13(H2O). Mineral Jachymovite is usually found in a dolomite-vein. It is commonly found at its type of locality at Jachymov (St. Joachimsthal), Krusne Hory, Zapadocesky kraj, Cechy (Bohemia), Czech Republic. Jachymovite was named after the locality. Mineral Jachymovite is known to crystallize in the monoclinic system […]

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