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Apatite-(CaF) : Ca5[F|(PO4)3] | |
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Bue, Bjerkreim, Rogaland, Norway Rounded apatite crystals to 1,5 mm in calcite matrix. FOV ca 2 x 1,4 mm. Photo scanned from diapositive, taken with a OM2 camera with phototube on a Olympus VMF2x stereoscope. Collected and in the collection of the photographer. |
| © Peter Andresen | Photo ID: 160134 View Count: 127 |
Calcite : CaCO3 | |
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Karmøy, Rogaland, Norway A 5,5 x 5 x 3,1 cm large piece with white calcite crystals of an unusual habit. Largest crystal 0,9 mm in diameter. They are growing on a mat of quartz covered by a layer of greyish-brown chlorite group mineral. It was found in a roadcut at Karmøy, Rogaland in the early 1980s. The exact locality is unknown to me. Obtained by trade in 1986. Photo ... |
| © K.E.Larsen | Photo ID: 249179 View Count: 33 |
Gypsum (Var: Selenite) : Ca[SO4] · 2H2O | |
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Visnes (Vigsnes) Copper Mines, Karmøy, Rogaland, Norway 45 mm long selenite group (post mining mineral), A. Österlöf specimen |
| © AÖ | Photo ID: 94704 View Count: 130 |
Osumilite : (K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30, Albite-Anorthite Series | |
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Vikesdal, Vikeså, Bjerkreim, Rogaland, Norway ~ 5 x 3,5 x 3 cm typical piece of purplish irregular crystals of osumilite frozen in albite-anorthite series matrix from Vikesdal. Some minor black spinel are also present on the piece. Collection (Nr 1070) and photo: Knut Edvard Larsen |
| © K.E.Larsen | Photo ID: 252641 View Count: 25 |
Sapphirine : (Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2 | |
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Sapphirine locality, Ivesdalsfjellet, Vikeså, Bjerkreim, Rogaland, Norway Saphirine crystals in matrix. Size of specimen shown: 7 x 7 cm Photo & collection: Atle Michalsen |
| © A. Michalsen | Photo ID: 263605 View Count: 12 |
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