Formula: MgCO3
Reflected/transmitted colour: colourless
Pleochroism: -
Optical isotropy/anisotropy: uniaxial
Optical sign: -
Refractive indices: ε =1.509-(1.563) , w = 1.700-(1.782) (higher values are for magnesite where Mg is substituted by other cations)
Birefringence δ: 0.190- (0.218)
2V angle:
Dispersion: very strong
Optical orientation:
Optical axial plane:
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