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Lapis lazuli
Lapis lazuli

Lizardite
Lizardite



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Lapis lazuli
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Lizardite

Lapis lazuli and Lizardite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.500-1.6701.538-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
TranslucentAnthony et al

Lapis lazuli and Lizardite Optic Character

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

Lapis lazuli and Lizardite Transparency

Similar to their colors, Lapis lazuli 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, Lapis lazuli is Opaque while Lapis lazuli is Opaque in appearance.