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Apophyllite-(KF) : KCa4[(F,OH)|Si8O20] · 8H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway White apophyllite-(KF) crystals. Size of biggest crystal: 2 cm Photo & collection: Atle Michalsen |
| © A. Michalsen | Photo ID: 261427 View Count: 21 |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway Yellowrown apophyllite-(KF) crystals on crystals of natrolite. Size of specimen: 6 cm (width) Photo & collection: Atle Michalsen |
| © A. Michalsen | Photo ID: 261553 View Count: 20 |
Bastnäsite-(Ce) : (Ce,La)[F|CO3], Analcime : Na2[Al2Si4O12] · 2H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway A 10 mm brown perimorphose of bastnäsite-(Ce) after an unknown mineral in white, massive analcime. I collected this specimen about 20 years ago, and it is now in my micromount collection. |
| © OT. Ljostad | Photo ID: 250838 View Count: 19 |
Britholite-(Ce) : Ca2(Ce,Ca)3[(OH,F)|(SiO4,PO4)3] | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway A 4 mm dark brown grain of britholite-(Ce) in matrix. The specimen was collected by Alf Olav Larsen, and it is now in the micromount collection of OT. Ljostad. |
| © OT. Ljostad | Photo ID: 39232 View Count: 440 |
Calcite : CaCO3, Natrolite : Na2[Al2Si3O10] · 2H2O, Apophyllite-(KF) : KCa4[(F,OH)|Si8O20] · 8H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway Yellow scalenoedric calcite crystals to 42 mm standing out from transparent natrolite and white apophyllite-(KF) crystals. Specimen 120x100x105 mm. Selfcollected some years ago. Photo and collection of Ingulv Burvald. |
| © Ingulv Burvald | Photo ID: 210483 View Count: 77 |
Chiavennite : CaMnBe2Si5O13(OH)2·2H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway Picture width is 4mm. Orange spheres of Chiavennite. Depth of field is achieved with CombineZM. |
| © Elmar Lackner | Photo ID: 98741 View Count: 221 |
Chiavennite : CaMnBe2Si5O13(OH)2·2H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway dimension area mm. 10 x 10 photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 213150 View Count: 31 |
Epididymite : Na2Be2Si6O15·H2O, Natrolite : Na2[Al2Si3O10] · 2H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway Beige balls of epididymite crystals on natrolite crystals. Field of view about 4 mm. The specimen was collected by and is now in the micromount collection of OT. Ljostad. |
| © OT. Ljostad | Photo ID: 17580 View Count: 477 |
Helvite : Mn2+4Be3[S|(SiO4)3], Analcime : Na2[Al2Si4O12] · 2H2O | |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway A 1,5 mm group of helvite crystals with white analcime. The specimen was collected in 1998 by the Norwegian collector Ingulv Burvald. He lives about 30 minutes away from Tvedalen and he visit the different quarries regularly. The financial crisis have also reached the stone business, and Mr Burvald told me that during the last few years most of ... |
| © OT. Ljostad | Photo ID: 224634 View Count: 71 |
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Almenningen Quarry (Treschow-Fritzøe Quarry), Tvedalen, Larvik, Vestfold, Norway Molybdenite. Specimen size 7,5x4,5cm. Photo and collection; Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 90691 View Count: 139 |
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