Chemistry:Romeite
From HandWiki
| Romeite | |
|---|---|
 | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | (Ca,Fe,Mn,Na) 2(Sb,Ti) 2O 6(O,OH,F) |
| Crystal system | hexoctahedral |
| Identification | |
| Color | Honey-yellow |
| Mohs scale hardness | 5.5–6.0 |
Roméite is a calcium antimonate mineral with the chemical formula (Ca,Fe,Mn,Na)
2(Sb,Ti)
2O
6(O,OH,F). It is a honey-yellow mineral crystallizing in the hexoctahedral crystal system. It has a Mohs hardness of 5.5-6.0. It occurs in Algeria, Australia , Brazil , China , Europe, Japan , New Zealand, and the United States in metamorphic iron-manganese deposits and in hydrothermal antimony-bearing veins.
Its type locality is Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy. It was named after Jean-Baptiste L. Romé de l'Isle. Brugger, et al. (1997) used infrared spectroscopy to measure water content in Roméite crystals.
References
Further reading
- Brugger, J., R. Gieré, Stefan Graeser, Nicolas Meisser, The crystal chemistry of roméite, Contributions to Mineralogy and Petrology, Volume 127, Numbers 1-2 / March, 1997, pp. 136–146
- Dana, James Dwight (1853) Manual of Mineralogy: Including Observations on Mines, Rocks, Reduction of Ores and the Application of the Science to the Arts, Durrie and Peck (5th edition), p. 303
- romeine. (n.d.). Webster's Revised Unabridged Dictionary. Retrieved March 24, 2008, from Dictionary.com website: http://dictionary.reference.com/browse/romeine
- Webmineral data
- Mindat with location data
- Atencio, D., Andrade, M. B., Christy, A. G., Gieré, R., & Kartashov, P. M. (2010). The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48(3), 673-698.doi: 10.3749/canmin.48.3.673[|permanent dead link|dead link}}]
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