Romeite
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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 | Minerals |
| Formula | (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.