Alurgite
A variety of Muscovite
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About Alurgite
Formula:
K(Al,Mn3+)2(AlSi3O10)(OH)2
Colour:
Purple, reddish
Name introduced by Breithaupt in 1865 and characterized by Penfield in 1893 (vide Knurr and Bailey, 1986). Placed by W. T. Schaller (1950) as an intermediate between leucophyllite (now a synonym of aluminoceladonite) and muscovite. A study of Knurr and Bailey (1986) showed that alurgite, treated as Mn-bearing muscovite-2M1, contains trivalent manganese (in contrast to "manganophyllite" that contains divalent Mn).
Visually indistinguishable from Mn-bearing phlogopite.
Visually indistinguishable from Mn-bearing phlogopite.
Unique Identifiers
Mindat ID:
163 (as Alurgite)
2815 (as Muscovite)
2815 (as Muscovite)
Long-form identifier:
mindat:1:1:163:4 (as Alurgite)
mindat:1:1:2815:4 (as Muscovite)
mindat:1:1:2815:4 (as Muscovite)
Similar Names
| Halurgite | A valid IMA mineral species | Mg4[B8O13(OH)2]2 · 7H2O |
Physical Properties of Alurgite
Colour:
Purple, reddish
Chemistry of Alurgite
Mindat Formula:
K(Al,Mn3+)2(AlSi3O10)(OH)2
Element Weights:
Other Language Names for Alurgite
Common Associates
Associations Based on Photo Data:
| 6 photos of Alurgite associated with 'Violan' | |
| 2 photos of Alurgite associated with Braunite | Mn2+Mn3+6(SiO4)O8 |
| 2 photos of Alurgite associated with Calcite | CaCO3 |
| 2 photos of Alurgite associated with Bixbyite-(Mn) | Mn3+2O3 |
| 2 photos of Alurgite associated with Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| 2 photos of Alurgite associated with Spessartine | Mn2+3Al2(SiO4)3 |
| 1 photo of Alurgite associated with 'Strontium-bearing Piemontite' | {(Ca,Sr)2}{Al2Mn3+}(Si2O7)(SiO4)O(OH) |
| 1 photo of Alurgite associated with Cryptomelane | K(Mn4+7Mn3+)O16 |
| 1 photo of Alurgite associated with Aegirine | NaFe3+Si2O6 |
| 1 photo of Alurgite associated with Quartz | SiO2 |
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 Alurgite
mindat.org URL:
https://www.mindat.org/min-163.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Alurgite
Reference List:
Webb, Robert W. (1939) Investigation of a new occurrence of alurgite from California. American Mineralogist, 24 (2) 123-129
Schaller, Waldemar T. (1950) An interpretation of the composition of high-silica sericites. Mineralogical Magazine and Journal of the Mineralogical Society, 29 (211) 406-415 doi:10.1180/minmag.1950.029.211.15
Localities for Alurgite
Showing 40 localities.
symbol to view information about a locality.
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.
Austria | |
| Meixner (1935) |
| Strasser (1989) | |
| Meixner (1939) |
| Meixner (1968) | |
| Neinaveie (1979) |
| Weinschenk (1896) +1 other reference |
| Schmidegg (1963) +1 other reference |
| Schmidegg (1963) |
Belgium | |
| Blondieau (2005) |
Brazil | |
| www.mindat.org (n.d.) |
Canada | |
| David Mills |
China | |
| Pingyi Wan (2002) |
| Pingyi Wan (2002) |
| Pingyi Wan (2002) |
| Pingyi Wan (2002) |
| Pingyi Wan (2002) | |
Greece | |
| Reinecke (1986) |
India | |
| Roy et al. (1968) |
| Nayak (1966) +1 other reference |
| Bilgrami (1955) |
Italy | |
| Castello (1981) +1 other reference |
| Pagani G. (1973) |
| Martin et al. (2004) |
| Castello (1982) | |
| Maletto et al. (2014) |
| Deidda et al. (2022) |
| Deidda et al. (2022) |
| Deidda et al. (2022) |
Japan | |
| - (n.d.) |
North Macedonia | |
| Estep (1977) |
Norway | |
| Larsen (2019) |
| - (n.d.) +1 other reference |
| www.strahlen.org (n.d.) | |
| Witsø (1995) | |
Poland | |
| Lis et al. (1986) |
Sweden | |
| Ödman (1950) |
| Sandström (1997) |
Switzerland | |
| Meixner (1939) |
USA | |
| Webb (1939) +2 other references |
Zambia | |
| specimen label from Munich Micromount ... |
Ouro Preto, Minas Gerais, Brazil