| Home Page | Log In | Message Board | The Mindat Directory |
| Register | Search Pages | Chat Now! (2 online) | Mindat Auctions |
|
|
|
Riebeckite : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Wittenoom (Wittenoom Gorge; "Wittenoon Gorge"), Hamersley Ranges (Hammersley Ranges), Pilbara Region, Western Australia, Australia Blue grey band of Riebeckite. Personal collection. 30mm x 20mm x 10mm |
| © Keith Compton | Photo ID: 33355 View Count: 629 |
Riebeckite (Var: Crocidolite) : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Dales Georges member Fe-formation, Wittenoom (Wittenoom Gorge; "Wittenoon Gorge"), Pilbara Region, Western Australia, Australia Crocidolite collected from roadside in Dale's Gorge in Nov 1970. FOV is 5cm. Fibres separating from massive crocidolite. |
| Photo ID: 198392 View Count: 151 | |
Riebeckite : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22], Quartz : SiO2 | |
|
Schlossberg, Gloggnitz, Lower Austria, Austria FOV 1,6 mm; Chris Auer photo and collection, self collected in 2007 |
| Photo ID: 145319 View Count: 171 | |
Riebeckite (Var: Crocidolite) : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Filadelfia Mine, Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia Fibrous blue crocidolite. Harvard Mineralogical Museum, no. 112670. |
| © 2008 Peter Cristofono | Photo ID: 159906 View Count: 262 |
Riebeckite (Var: Crocidolite) : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Filadelfia Mine, Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia Width of field is 5.4 mm. Collection and photo Jesse Crawford. Composit photo using CombineZP. Equipment Nikon D-100 digital camera on a homemade microscope. Fibrous riebeckite. It looks a little dangerous doesn't it? |
| © 2008 Jesse Crawford | Photo ID: 230710 View Count: 35 |
| |
|
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV ~ 1.2 cm. Found 2000. So called "riebeckite" - but not analyzed. This "naturally curly" variety from marble xenolith is less common than the "straight haired" type found in hornfels. Nov 2009: Updated with macro view. The micro close-up is now a child photo. Also added a macro stereo view. |
| Photo ID: 185831 View Count: 182 | |
Riebeckite : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV 6.1 x 4.3 mm. Collected by Modris B. August 1997. Riebeckite apparently growing on and/or replacing phlogopite in marble xenolith. Just a curiosity. |
| Photo ID: 185953 View Count: 163 | |
Riebeckite : [ ][Na2][Fe2+3Fe3+2][(OH)2|Si8O22] | |
|
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV 6.1 x 3.5 mm. Collected by Modris B. April 2000. Not analyzed. This sample was trapped in a very narrow seam in hornfels. Hence the "exploding star" growth pattern. |
| Photo ID: 185832 View Count: 131 | |
| |
|
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV 4.3 x 5.8 mm. Collected by Modris B. 1996. Not analyzed. This "straight haired" variety from hornfels is perhaps the most common at MSH. Stereo child photo. |
| Photo ID: 185829 View Count: 122 | |
| |
|
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV ~ 4.5 cm wide. Found 1996. This is from hornfels and MSH collectors call it "riebeckite" - but it has not been analyzed. This material is found abundantly but infrequently. It may be "under collected" because it's rather ugly when wet and muddy - as if often the case. But when cleaned up, the blue color is quite attractive. There are some ... |
| Photo ID: 262219 View Count: 10 | |
| Page 1 of 5 (1 to 10 of 44 total) | Next Page | |
| Page: 1 2 3 4 5 | ||
