Lizardite and Andradite Garnet Optical Properties

Lizardite

Andradite Garnet

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1 Optical Properties

1.1 Luster

Not Available

Adamantine

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TranslucentAnthony et al, Handbook of mineralogy (2001)

Transparent, Opaque, Transparent to opaque

1.5 Refractive Index

1.538-1.5601.888-1.889

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Isometric

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TranslucentAnthony et al

Transparent to opaque

Lizardite and Andradite Garnet Optic Character

Lizardite and Andradite Garnet optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lizardite and Andradite Garnet Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Lizardite and Andradite Garnet optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Lizardite and Andradite Garnet Transparency

Similar to their colors, Lizardite and Andradite Garnet transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.