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Unakite
Unakite

Amazonite
Amazonite



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Unakite
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Amazonite

Unakite and Amazonite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
WeakMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
2.5 Transparency
Gemstones of the world (2001)
Translucent, Translucent to opaque
2.6 Refractive Index
1.5251.522-1.530
Agate Opal
1 3.25
2.10 Optic Character
Not Available
Not Available
2.11 Crystal System
monoclinic
Triclinic
2.12 Birefringence
Not Available0.008-0.010
Achroite
0 0.296
3.4 Clarity
Gemstones of the world (2001)
Translucent

Unakite and Amazonite Optic Character

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

Similar to their colors, Unakite and Amazonite 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.