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Aragonite : CaCO3, Fluorite : CaF2 | |
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Marble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria Field of view 2,75 cm - Photo & collection M.Mader |
| © 2005 - MMI | Photo ID: 34870 View Count: 666 |
Ranciéite : (Ca,Mn)Mn4O9·3H2O | |
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Marble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria Photomicrograph of violet rancieite crystals in a veinlet of colloform goethite (with a radial fibrous structure), over a thin black manganese oxide coating (hollandite and minor braunite), from Friesach, Carinthia, Austria. Width of the photo section: 6.0 mm. |
| Photo ID: 145043 View Count: 165 | |
Ranciéite : (Ca,Mn)Mn4O9·3H2O | |
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Marble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria Photomicrograph of purplish rancieite crystals (with a brightmetallic luster) in a veinlet of colloform goethite (with a radial fibrous structure), over a thin black manganese oxide coating (hollandite and minor braunite), from Olsa, Friesach, Carinthia, Austria. Width of the photo section: 6.0 mm. |
| Photo ID: 145044 View Count: 138 | |
Ranciéite : (Ca,Mn)Mn4O9·3H2O | |
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Marble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria SEM photo of Ranciéite crystals from Olsa, Friesach, Carinthia, Austria, width of the photo sector: 40 μm. |
| Photo ID: 145045 View Count: 112 | |
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