Periclase is a magnesium mineral that occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks. It is a cubic form of magnesium oxide (Mg O).

Hazen R M , American Mineralogist , 61 (1976) p.266-271, Effects of temperature and pressure on the cell dimension and X-ray temperature, factors of periclase, T = 24 C, P = 1 atm, …

Calculated from ideal end-member formula. Often octahedral, less often cubooctahedral or cubic, rarely dodecahedral (Crestmore, CA). Usually irregular or rounded grains. Data courtesy of the …

Periclase is a very rare magnesium oxide mineral that is rarely available as a faceted gem. The chemical formula of Periclase is MgO (Magnesium Oxide) and its molecular weight is 40.30 gm.

Periclase is defined as a cubic mineral composed of magnesium oxide (MgO) that exhibits perfect cleavage and is commonly found in metamorphosed limestones and dolomites.

Periclase is a mineral with formula of MgO. The IMA symbol is Per. See also: Magnesium Oxide (broader). Magnesium Oxide (broader) Memorie mineralogiche e geologiche della Campania. …

Periclase MgO c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Cubic. Point Group: 4/m 3 2/m. As small octahedra, less commonly cubo-octahedra or dodecahedra, may be …