Romeite

Roméite is a calcium antimonate mineral with the chemical formula (Ca,Fe,Mn,Na)₂(Sb,Ti)₂O₆(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.

Romeite
General
Category	Mineral
Formula (repeating unit)	(Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F)
Crystal system	hexoctahedral
Identification
Color	Honey-yellow
Mohs scale hardness	5.5–6.0

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^{[dead link]}