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Unakite and Fire Opal Optical Properties


Fire Opal and Unakite Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Gemstones of the world (2001)   
Transparent, Translucent   

Refractive Index
1.525   
1.370-1.470   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Amorphous   

Birefringence
Not Available   
Not Available   

Clarity
Gemstones of the world (2001)   
Transparent   

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<< Physical Properties

Unakite and Fire Opal Optic Character

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

Similar to their colors, Unakite and Fire Opal 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.

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