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Unakite
Unakite

Lazulite
Lazulite



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Unakite
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Lazulite

Unakite and Lazulite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones of the world (2001)
Transparent, Translucent
1.5 Refractive Index
1.5251.604-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
Not Available0.031-0.036
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
Transparent

Unakite and Lazulite Optic Character

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

Unakite and Lazulite Transparency

Similar to their colors, Unakite and Lazulite 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.