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Rocky Valley Reservoir, Falls Creek, Victoria, Australia A fragment of cordierite from Falls Creek. The crystal was found in situ in a piece of migmatite leucosome. Large, inclusion free crystals of cordierite are rare in Victoria, as they are most common in metapelites and are usually retrogressed. Fresh cordierites occur in ignimbrites in eastern Victoria, but are typically very small. Being in the ... |
| © Ryan Eagle | Photo ID: 227015 View Count: 175 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil Violet etched cordierite crystal. Size: 14 x 22 x 4 mm Photo and collection Antonio Borrelli |
| © Antonio Borrelli | Photo ID: 35666 View Count: 449 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil A 2.4 by 1.2 cms light purple thumbnail crystal, etched in a pegmatite cavity, that is completely transparent. Sobolewski specimen and photograph. |
| © John Sobolewski | Photo ID: 58353 View Count: 326 |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil Iolite sample with 2,5cm - March of 2007 |
| © Martins da Pedra | Photo ID: 94306 View Count: 289 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil Gemmy Cordierite Size: 1,4 x 1,2 cm Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 95530 View Count: 235 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil Geme Iolite sample with 1,5cm - March of 2007 |
| © Martins da Pedra | Photo ID: 94308 View Count: 144 |
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Virgolândia, Coroaci, Minas Gerais, Southeast Region, Brazil Cordierite. Vasco Trancoso collection and photo. Size: 1.5x0.7x0.4 cm. From Coroaci a nice etched floater, light violet/blue gemmy crystal almost transparent when against light (please see child photo). |
| © vasco trancoso | Photo ID: 236362 View Count: 84 |
Cordierite : (Mg,Fe)2Al4Si5O18, Anhydrite : CaSO4, Chalcopyrite : CuFeS2 | |
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Ruttan Mine, Manitoba, Canada Cordierite is one of those species condemned to exist in only ugly specimens of largely crude crystals. Here, however, from a locality I hadn't even heard of before, we have a wild exception to the trend! These robust crystals to 1.2 cm in size have a jet black color, waxy lustre, and excellent crystal form! They are embedded and partially ... |
| © Rob Lavinsky | Photo ID: 20270 View Count: 540 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Granite outcrop, Manzat, Puy-de-Dôme, Auvergne, France Single crystals Size: 1,3 cm max Collection and photo: Arliguie M |
| © Arliguie M | Photo ID: 197275 View Count: 185 |
Cordierite : (Mg,Fe)2Al4Si5O18 | |
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Eifel Mts, Rhineland-Palatinate, Germany View 1x1 mm |
| © Luigi Mattei | Photo ID: 224595 View Count: 86 |
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