Roméite

Roméite is a calcium antimonate mineral with the formula (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F). Roméite is a honey-yellow mineral crystallizing in the hexoctahedral crystal system. It has a Mohs hardness of 5.5-6.0. It occurs in AlgeriaAustraliaBrazilChinaEuropeJapanNew Zealand, and the United States in metamorphic iron-manganese deposits and in hydrothermal antimony-bearing veins.

Romeite
Romeite-290541.jpg
General
CategoryMineral
Formula
(repeating unit)
(Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F)
Crystal systemhexoctahedral
Identification
ColorHoney-yellow
Mohs scale hardness5.5–6.0


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. 


This article uses material from the Wikipedia article
 Metasyntactic variable, which is released under the 
Creative Commons
Attribution-ShareAlike 3.0 Unported License
.