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Manganogrunerite : [ ][Mn2+2][Fe2+5][(OH)2|Si8O22], Cummingtonite : [ ][Mg2][Mg5][(OH)2|Si8O22] | |
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North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co., New South Wales, Australia Width of field 7.0 mm. Collection and photo Jesse Crawford. Compositing software CombineZP. Equipment: Nikon D-100 digital camera on a homemade microscope. A radial aggregate of manganogrunerite with a small area of black cummingtonite to the right of center. |
| © 2008 Jesse Crawford | Photo ID: 202872 View Count: 62 |
Manganogrunerite : [ ][Mn2+2][Fe2+5][(OH)2|Si8O22], Spessartine : Mn2+3Al2[SiO4]3, Quartz : SiO2 | |
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Mn deposit, Dürnstein, Neumarkt, Styria, Austria Aggregate of brown manganogrunerite with black spessartine in quartz. The mean of fourteen quantitative SEM-EDS analyses on a polished thin section gave the following formula for the manganogrunerite: (Ca0.07Mn1.69)(Fe2.74Mg2.52)Si7.98O22(OH)1.96 Polished slab, field of view 10 cm, sample AN1222. Collected 26.4.2007 by Franz Bernhard, photo ... |
| © Franz Bernhard | Photo ID: 122587 View Count: 191 |
Manganogrunerite : [ ][Mn2+2][Fe2+5][(OH)2|Si8O22] | |
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Stolberg, Aachen, North Rhine-Westphalia, Germany Size: 2 x 1 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 94222 View Count: 163 |
Manganogrunerite : [ ][Mn2+2][Fe2+5][(OH)2|Si8O22] | |
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Grythyttan, Hällefors, Västmanland, Sweden sample size 2.5cm |
| © Maurice de Graaf | Photo ID: 15863 View Count: 1127 |
Manganogrunerite : [ ][Mn2+2][Fe2+5][(OH)2|Si8O22] | |
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Grythyttan, Hällefors, Västmanland, Sweden Sample size: 6,5 X3,5 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 186692 View Count: 147 |
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