Muscovite-1M
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About Muscovite-1M
Formula:
KAl2(AlSi3O10)(OH)2
Crystal System:
Monoclinic
Unique Identifiers
Mindat ID:
32557
Long-form identifier:
mindat:1:1:32557:0
Similar Names
| Muscovite-3A | A synonym of 'Muscovite-3T' | KAl2(AlSi3O10)(OH)2 |
Chemistry of Muscovite-1M
Mindat Formula:
KAl2(AlSi3O10)(OH)2
Element Weights:
Crystallography of Muscovite-1M
Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Setting:
C2
Cell Parameters:
a = 5.186 Å, b = 8.952 Å, c = 10.12 Å
β = 101.8°
β = 101.8°
Ratio:
a:b:c = 0.579 : 1 : 1.13
Unit Cell V:
459.89 ų (Calculated from Unit Cell)
Comment:
From Russian structure solution (1975).
Other Language Names for Muscovite-1M
Russian:Мусковит-1M
Common Associates
Associations Based on Photo Data:
| 1 photo of Muscovite-1M associated with Orthoclase | K(AlSi3O8) |
Radioactivity
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Muscovite-1M
mindat.org URL:
https://www.mindat.org/min-32557.html
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References for Muscovite-1M
Reference List:
Localities for Muscovite-1M
Showing 20 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
France | |
| Leconte J. et al. (2016) |
Norway | |
| Åmli (1977) |
| Frigstad (1968) |
| Frigstad (1968) | |
| Eldjarn (1994) |
| Nordrum et al. (2006) |
| Raade (2005) |
| Gunnar Raade (1962) +1 other reference |
| Nordli et al. (1997) | |
| Hurum (1999) |
| Larsen et al. (2010) |
| Larsen et al. (2010) | |
| Berge (n.d.) |
| Berge (n.d.) |
| Nordrum et al. (2000) |
| Nordrum et al. (1997) |
| Berge (n.d.) |
| Berge (n.d.) | |
Switzerland | |
| Graeser et al. (2001) +1 other reference |
| Stalder et al. (1998) |
Bréziès, Asprières, Villefranche-de-Rouergue, Aveyron, Occitanie, France