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Albite : Na[AlSi3O8] | |
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Rischuna Alp, Bucarischuna, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Albite crystals. Alan Goldstein specimen (2034) and photo. An old specimen, label says "Tekn. Högskolans Mineralog. Avd." |
| © Alan Goldstein | Photo ID: 91731 View Count: 171 |
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Piz Aul, Vals, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Dipyramidal, very sharp and doubly terminated crystal with small crystals of Brookite and Quartz, on matrix. The sample is with a label from the Comptoir Minéralogique & Géologique Suisse, of Geneva. Piz Aul, Vals, Vals Valley, Grisons, Switzerland. Specimen size: 5.3 x 3.9 x 3.7 cm Main crystal size: 0.6 x 0.3 cm With handwritten ... |
| © fabreminerals.com | Photo ID: 96965 View Count: 122 |
Brookite : TiO2 | |
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Piz Aul, Vals, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Perfect, isolated, old crystal up to 11 mm. In my personal Alpine mineral suite. Photo Simone Citon. |
| © Simone Citon | Photo ID: 179085 View Count: 91 |
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Rischuna Alp, Bucarischuna, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Field of view 48 mm. Collection M. Kampf No 06-072. |
| © 2006 M. Kampf | Photo ID: 55396 View Count: 205 |
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Scharboda Alp, Vrin, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Calcite rombohedrons up to 3 cm in diameter. See second image for detail. Specimen size 11.1 x 8 x 3.9 cm. Christian Bracke Collection. |
| © Christian Bracke | Photo ID: 139919 View Count: 95 |
Calcite : CaCO3, Quartz : SiO2 | |
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Scharboda Alp, Vrin, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Calcite rhombohedrons up to 9.7 cm tip-to-tip. Specimen size 12.8 x 9.5 x 7.1 cm. Christian Bracke Collection. |
| © Christian Bracke | Photo ID: 202621 View Count: 40 |
Danburite : CaB2Si2O8 | |
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Plattenberg Mt., Länta, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Picture width 2 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 185900 View Count: 92 |
Danburite : CaB2Si2O8 | |
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Plattenberg Mt., Länta, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Picture width 4 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 185901 View Count: 80 |
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Plattenberg Mt., Länta, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Picture width 2 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 185969 View Count: 79 |
Danburite : CaB2Si2O8 | |
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Plattenberg Mt., Länta, Vals Valley, Lugnez Valley (Lumnezia Valley), Grischun (Grisons; Graubünden), Switzerland Picture width 2 mm. Collection and photo Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 185968 View Count: 78 |
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