Magnesite

Category: Carbonate mineral

Chemical formula: MgCO3

Strunz classification: 05.AB.05

Crystal system: Trigonal - Hexagonal Scalenohedral H-M Symbol 32/m Space Group: R3c

Mohs scale hardness: 3.5 - 4.5

Specific gravity: 3.0 - 3.2

Optical properties: Uniaxial (-)

Refractive index: nω=1.508 - 1.510 nε=1.700

Mohs scale hardness: 3.5 - 4.5



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