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Creedite and Unakite Optical Properties


Unakite and Creedite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Gemstones of the world (2001)   

Refractive Index
1.461-1.485   
1.525   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
monoclinic   

Birefringence
0.024   
Not Available   

Clarity
Transparent   
Gemstones of the world (2001)   

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<< Physical Properties

Creedite and Unakite Optic Character

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

Similar to their colors, Creedite and Unakite 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, Creedite is Translucent and Transparent while Creedite is Translucent and Transparent in appearance.

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