Damourite
A variety of Muscovite
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About Damourite
Augustin Alexis Damour
Formula:
KAl2(AlSi3O10)(OH)2
Colour:
Green, yellow, red, lavender.
Lustre:
Resinous, Waxy, Greasy
Hardness:
2 - 3
Name:
First described by Achille Ernest Oscar Joseph Delesse in 1845, in honor of Augustin Alexis Damour [July 19, 1808 Paris, France - September 22, 1902 Paris, France], mineralogical chemist. (Annales de Chimie et de Physique, v. 15, no. 3, p. 248-255.)
Very fine-grained, compact muscovite - with a greasy feel, "serpentine-like," and often a fibrous appearance when viewed from a certain direction.
Unique Identifiers
Mindat ID:
8579 (as Damourite)
2815 (as Muscovite)
2815 (as Muscovite)
Long-form identifier:
mindat:1:1:8579:9 (as Damourite)
mindat:1:1:2815:4 (as Muscovite)
mindat:1:1:2815:4 (as Muscovite)
Similar Names
| Damaraite | A valid IMA mineral species | Pb3Cl(OH)O2 |
| Daourite | A variety of Elbaite | |
| Tamarite (of Brooke and Miller) | A synonym of Chalcophyllite | |
| Tamarite (of Ford) | A synonym of Taramite Root Name Group | |
| Tamuraite | A valid IMA mineral species | Ir5Fe10S16 |
Physical Properties of Damourite
Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Colour:
Green, yellow, red, lavender.
Streak:
White
Hardness:
2 - 3 on Mohs scale
Tenacity:
Sectile
Cleavage:
Perfect
Perfect
Perfect
Fracture:
Micaceous
Chemistry of Damourite
Mindat Formula:
KAl2(AlSi3O10)(OH)2
Element Weights:
Crystallography of Damourite
Morphology:
Sometimes indistinctly micaceous, often occurs replacing other silicates
Geological Environment
Geological Setting:
granite pegmatite
Synonyms of Damourite
Talcite (in part)
Other Language Names for Damourite
Common Associates
Associations Based on Photo Data:
| 11 photos of Damourite associated with Kyanite | Al2(SiO4)O |
| 8 photos of Damourite associated with Quartz | SiO2 |
| 4 photos of Damourite associated with Fluorapatite | Ca5(PO4)3F |
| 4 photos of Damourite associated with Cassiterite | SnO2 |
| 3 photos of Damourite associated with Ilmenite | Fe2+TiO3 |
| 2 photos of Damourite associated with Rutile | TiO2 |
| 1 photo of Damourite associated with Microcline | K(AlSi3O8) |
| 1 photo of Damourite associated with Lepidolite | |
| 1 photo of Damourite associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
| 1 photo of Damourite associated with Albite | Na(AlSi3O8) |
Radioactivity
Fluorescence of Damourite
Not usually fluorescent in UV
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 Damourite
mindat.org URL:
https://www.mindat.org/min-8579.html
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References for Damourite
Reference List:
Localities for Damourite
Showing 68 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.
Antarctica | |
Australia | |
| Martins da Pedra. |
| Admad et al. (2013) |
| |
| SARIG Mineral Deposit Information | |
| Jacobson. (2007) |
| Jacobson et al. (2007) +2 other references |
| Calderwood +2 other references |
China | |
| Yueqing Yang et al. (1987) |
| Maozhong Min and Junqi Wu (1992) |
| Maozhong Min and Junqi Wu (1992) |
| Maozhong Min and Junqi Wu (1992) |
| Li Jianhong Liang Liang Liu Chengdong (1995) |
| Min et al. (1999) |
| Min et al. (2005) |
| Dahlkamp (2009) |
| Zhili Qiu et al. (2001) |
France | |
| Bull. Soc. Franç. Minéralo. ... |
| Germain C. (1988) |
| Pillard F. et al. (1985) |
| Arliguie M |
| Guide geologique de la Haute Vienne |
| Guide geologique de la Haute Vienne |
| perso.wanadoo.fr (2005) |
| LACROIX A: Mineralogie de la France et ... |
| Baret (1898) |
| Baret (1905) |
| Baret (1905) | |
| Baret (1905) |
| Baret (1905) |
Italy | |
| R. Lefèvre and A. Michard |
Madagascar | |
| Behier (1960) |
| Behier (1960) |
Norway | |
| |
Poland | |
| Lis et al. (1986) |
Sweden | |
| GFF 2 +1 other reference |
| |
| Nordiska Riksmuseet (Stockholm) +1 other reference |
USA | |
| Brush and Dana (1878) |
| Moritz (n.d.) |
| Moritz (n.d.) | |
| Januzzi (1959) +1 other reference |
| 92. +1 other reference |
| 93. +1 other reference | |
| King et al. (1994) |
| King et al. (1994) +1 other reference |
| Kink |
| King et al. (1994) | |
| King (n.d.) |
| King et al. (1994) +1 other reference |
| King et al. (6) | |
| King (n.d.) | |
| Tim Blake |
| King et al. (1994) | |
| Jeremy Zolan |
| Ransom (1974) |
| Genth et al. (1881) |
| Genth et al. (1881) |
| Ransom (1974) | |
| Samual S. Gordon +1 other reference |
| Dana 6:1067. |
| ... | |
| Gordon (1922) |
| Miller (1971) |
| Sloan (1908) |
| Bullock (1981) |
| Rocks&Min. 47:596 (1972) |
Williamstown, Barossa Council, South Australia, Australia