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Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium
Detailed Mineral List:
| Andalusite | ||
| Formula: | Al2(SiO4)O | |
| Colour: | Blue | |
| Description: | Hercynian metamorphism : 1-2 kb, 380°C. | |
| Reference: | A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143. | |
| 'Andalusite-Kanonaite Series' | ||
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Ardennite-(As) | ||
| Formula: | Mn2+4(Al,Mg)6(Si3O10)(SiO4)2(AsO4,VO4)(OH)6 | |
| Reference: | Ann.Mines, 4th ser. (1842) 2, 357 | |
| Carpholite | ||
| Formula: | Mn2+Al2(Si2O6)(OH)4 | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| 'Chlorite Group' | ||
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Localities: | Recorded from at least 1 other locality in this region. | |
| Chloritoid | ||
| Formula: | (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2 | |
| Description: | Hercynian metamorphism : 1-2 kb, 380°C. | |
| Reference: | A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143. | |
| Davreuxite (TL) |  | |
| Formula: | MnAl6Si4O17(OH)2 | |
| Type Locality: | Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | |
| Reference: | Bull.Acad.roy.Sci.Belg., 2nd ser.(1876) 46, 240-245 | |
| Photo: © JDehove. Davreuxite from Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | ||
| Dickite | ||
| Formula: | Al2(Si2O5)(OH)4 | |
| Reference: | A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143. | |
| Euclase | ||
| Formula: | BeAl(SiO4)(OH) | |
| Description: | Association with Pyrophyllite, ottrelite and davreuxite. | |
| Reference: | A. Hanson, Bull. Minéral. , 1985, 108, pp. 139-143. | |
| Gahnite | ||
| Formula: | ZnAl2O4 | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| 'Garnet' | ||
| Formula: | X3Z2(SiO4)3 | |
| Reference: | No reference listed | |
| Hematite | ||
| Formula: | Fe2O3 | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Localities: | Recorded from at least 1 other locality in this region. | |
| Kaolinite | ||
| Formula: | Al2(Si2O5)(OH)4 | |
| Reference: | No reference listed | |
| 'Mica Group' | ||
| Reference: | No reference listed | |
| Muscovite | ||
| Formula: | KAl2(AlSi3O10)(OH)2 | |
| Description: | Existence of mixed-layer muscovite/paragonite. Hercynian metamorphism : 1-2 kb, 380°C. | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Ottrélite (TL) |  | |
| Formula: | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 | |
| Type Locality: | Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | |
| Reference: | Ann.Mines, 4th ser. (1842) 2, 357 | |
| Photo: © JDehove. Ottrélite from Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | ||
| Paragonite | ||
| Formula: | NaAl2(AlSi3O10)(OH)2 | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Pyrophyllite | ||
| Formula: | Al2(Si4O10)(OH)2 | |
| Reference: | No reference listed | |
| Quartz | ||
| Formula: | SiO2 | |
| Reference: | No reference listed | |
| Localities: | Recorded from at least 1 other locality in this region. | |
| Quartz var: Smoky Quartz | ||
| Formula: | SiO2 | |
| Reference: | Harjo Neutkens collection | |
| Rutile | ||
| Formula: | TiO2 | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Spessartine | ||
| Formula: | Mn2+3Al2(SiO4)3 | |
| Description: | Hercynian metamorphism : 1-2 kb, 380°C. | |
| Reference: | Th. Theye and A.M. Fransolet : "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555 | |
| Sudoite |  | |
| Formula: | (Mg,Fe2+)2Al3(AlSi3O10)(OH)8 | |
| Reference: | http://rruff.geo.arizona.edu/doclib/hom/sudoite.pdf | |
| Photo: © C.Boutry. Sudoite from Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | ||
| Torbernite |  | |
| Formula: | Cu(UO2)2(PO4)2 · 12H2O | |
| Reference: | Harjo Neutkens | |
| Localities: | Recorded from at least 1 other locality in this region. | |
| Photo: © Harjo. Torbernite from Pagani quarry, Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | ||
| 'Tourmaline' | ||
| Formula: | A(D3)G6(T6O18)(BO3)3X3Z | |
| Reference: | No reference listed | |
| Turquoise |  | |
| Formula: | Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O | |
| Reference: | Harjo Neutkens | |
| Localities: | Recorded from at least 1 other locality in this region. | |
| Photo: © Harjo. Turquoise from Pagani quarry, Ottré, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium | ||
| Vantasselite | ||
| Formula: | Al4(PO4)3(OH)3 · 9H2O | |
| Reference: | A. Van Herreweghe collection | |
| Wavellite | ||
| Formula: | Al3(PO4)2(OH,F)3 · 5H2O | |
| Reference: | A. Van Herreweghe collection | |
28 entries listed. 22 valid minerals. 2 type localities (valid minerals).
References
- Pasero M., Reinecke T., Fransolet A. M. (1994): Crystal structure refinements and compositional control of Mn-Mg-Ca ardennites from the Belgian Ardennes, Greece, and the Western Alps. N. Jb. Miner., Abh., 166, 137-167.
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