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Adularia : KAlSi3O8, Quartz (Var: Smoky Quartz) : SiO2, Apatite-(CaF) : Ca5[F|(PO4)3], Chlorite Group | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland 5.8 x 2.0 x 3.4 cm, 24.6g This specimen consists of sharp adularia crystals (up to 1.5 cm) coated with green chlorite. Associated species are a single 2.5 cm smoky quartz and numerous small pale pink apatite crystals (up to 1 cm) |
| © Eric Graff | Photo ID: 240410 View Count: 41 |
Adularia : KAlSi3O8 | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland 4.1 x 4.1 x 1.9 cm. A glassy, translucent, very sharp, colorless orthoclase variety adularia crystal from a classic Swiss locality - the Giuv Valley, Grisons. Green chlorite has nicely dusted and accented this excellent piece, which is complete all-around and is essentially pristine, except for contacting at the base. Ex. Mullane Collection and ... |
| © Rob Lavinsky | Photo ID: 214880 View Count: 40 |
Apatite-(CaF) : Ca5[F|(PO4)3] | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Apatite xtl Giuv Valley, Tujetsch, Switzerland size of view 8mm Photo and Collection Alois Lechner |
| © AL | Photo ID: 139368 View Count: 91 |
Chabazite | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Chabazite xx, Stilbite xx, Quartz xx. Field of view 28 mm. Collection M. Kampf No 68-061. |
| © 2005 M. Kampf | Photo ID: 26227 View Count: 367 |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Close up on a 2.9 mm area with Heulandite crystal. Collection A.Mattiello photo M.Chinellato |
| © Chinellato Matteo | Photo ID: 163841 View Count: 94 |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Picture width 4 mm. Collection and photo Stephan Wolfsried Mindat.org Photo of the Day - 28th Nov 2008 |
| © Stephan Wolfsried | Photo ID: 197554 View Count: 539 |
Milarite : K2Ca4Al2Be4Si24O60·H2O | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland A superb crystal for the species from ANY location but particularly from this classic Alpine locality. The quality of this crystal is very high, and it is more obviously gemmy in person. It measures 1 x 0.5 x 0.5 cm and is perched on a sprig of matrix! Esoteric and "just" a thumbnail, I admit, but an important specimen nonetheless. Interestingly, ... |
| © Rob Lavinsky | Photo ID: 21349 View Count: 401 |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Picture width 8 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 66458 View Count: 369 |
Milarite : K2Ca4Al2Be4Si24O60·H2O | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland Picture width 3 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 72691 View Count: 287 |
Milarite : K2Ca4Al2Be4Si24O60·H2O | |
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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland xls up to 1,5 mm |
| © TK | Photo ID: 12440 View Count: 451 |
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