Very small black crystals of the new mineral oxycalcioromeite (IMA2012-022) from the type locality (Buca Della Vena Mine, Apuan Alps, Lucca Province, Tuscany, Italy) and only one of the two localities known worldwide. — Photo: David Hospital · CC BY-SA 4.0
Oxycalcioroméite
Oxycalcioroméite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Ca₂Sb⁵⁺₂O₇.
It crystallizes in the cubic crystal system (space group Fd3m). It is a member of the Pyrochlore-Roméite structural group.
IMA symbol Ocr, IMA status: approved, named in 2012.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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