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Perovskite crystal (var. Dysanalyte) (macro)
- ProveniențăLocality
- Magnet Cove, Arkansas, USA
- DimensiuniSize
- 1.2 x 0.5 x 0.3 cm
- FormulăFormula
- Perovskite - CaTiO3; Anatase - TiO2
- Nr. de inventarInventory no.
- 4020
Perovskite is an increasingly economically important, and in some rocks a rather common, mineral. It is sought after for its rare earth metal content. Often Perovskite is enriched in cerium, niobium, thorium, lanthanum, neodymium, and other rare earth metals. When the habit is cubic, specimens can remind one of the darkly colored cubes of Galena. But Galena's better metallic luster, greater density, and perfect cleavage prevent anyone from permanently confusing the two.
This specimen represents a floater cube-octahedron crystal of Perovskite (pseudocubic; it is orthorhombic in symmetry) with brownish alteration of Anatase. Dysanalyte is a Nb-bearing Perovskite.