Unakite and Lizardite Optical Properties

Unakite

Lizardite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemstones of the world (2001)

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.5251.538-1.560

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Gemstones of the world (2001)

TranslucentAnthony et al

Unakite and Lizardite Optic Character

Unakite and Lizardite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Unakite and Lizardite 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 Unakite and Lizardite 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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Unakite and Lizardite Transparency

Similar to their colors, Unakite and Lizardite 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, Unakite is Gemstones of the world (2001) while Unakite is Gemstones of the world (2001) in appearance.