Perovskite

Perovskite

Formula: CaTiO₃

Mohs scale hardness: 5–5,5

Specific gravity: 3,98-4,26

Rare earth elements: Ce, La, Nd

^{Rare earth content, %:}

Other constituents, %: Ti, Nb, Th

^{Mineralklasse: Oxide}

Uses: A minor ore of titanium and rare earth metals and as mineral specimens.

Perovskite is a calcium titanium oxide mineral composed of calcium titanate, with the chemical formula CaTiO_3. The stability of perovskite in igneous rocks is limited by its reaction relation with sphene. In vol

canic rocks perovskite and sphene are not found together._{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. Rare earth metals are becoming rather attractive for prospectors due to their growing value to industry. The titanium derived from perovskite is recovered as well.Associated Minerals include chlorite, talc, serpentine, melilite, andradite, nepheline, sphene and leucite.Notable Occurrences include the Slatoust district, Ural Mountains, Russia; Sweden; Crestmore Quarries, Riverside County and the Diablo Range, San Benito County, California; the Bearpaw Mountains, Montana and Magnet Cove Arkansas, USA; Zermatt, Switzerland; Gardiner complex, Greenland; Jacupiranga, Sao Paulo, Brazil; Val Malenco, Lombardy, Italy and the Eifel District, Germany.}References

1. https://en.wikipedia.org

2. https://commons.wikimedia.org/wiki/File:Perovskite-94432.jpg

3. http://www.ecosystema.ru/08nature/min/1_6_5_2.htm

4. http://www.jevel.ru/stone/kamen_perovskit.html

5. http://www.galleries.com/Perovskite

6. http://biofile.ru/geo/23436.html