Skip to main content
Select Source:

perovskite model

perovskite model A theoretical model of the Earth's composition suggesting that the mineral perovskite (CaTiO3) makes up most of the lower part of the mantle between 600 and 2800 km depth, at 2000–2500°C. Perovskite has been made artificially by compressing olivine, pyroxene, and garnet, and has been shown to withstand temperatures of 2000°C in the laboratory.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"perovskite model." A Dictionary of Earth Sciences. . Encyclopedia.com. 22 Jul. 2017 <http://www.encyclopedia.com>.

"perovskite model." A Dictionary of Earth Sciences. . Encyclopedia.com. (July 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/perovskite-model

"perovskite model." A Dictionary of Earth Sciences. . Retrieved July 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/perovskite-model

perovskite

perovskite A mineral oxide CaTiO3; sp. gr. 3.98–4.26; hardness 5.5; monoclinic or orthorhombic; tiny, cubic crystals; yellow-brown to black; common accessory mineral in undersaturated (see SILICA SATURATION) alkaline igneous rocks found with nepheline or melilite. Occasionally occurs in some ultramafic (see ULTRABASIC), plutonic, igneous rocks.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"perovskite." A Dictionary of Earth Sciences. . Encyclopedia.com. 22 Jul. 2017 <http://www.encyclopedia.com>.

"perovskite." A Dictionary of Earth Sciences. . Encyclopedia.com. (July 22, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/perovskite

"perovskite." A Dictionary of Earth Sciences. . Retrieved July 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/perovskite