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Citrine and Demantoid Optical Properties


Demantoid and Citrine Optical Properties


Optical Properties

Luster
Vitreous   
Adamantine   

Pleochroism
Natural: weak; yellow light yellow.   
None   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent   
Gemmological Tables (2004)   

Refractive Index
1.544-1.553   
1.880-1.890   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
cubic   

Birefringence
0.009   
Not Available   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Citrine and Demantoid Optic Character

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

Similar to their colors, Citrine and Demantoid 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, Citrine is Transparent while Citrine is Transparent in appearance.

Semi Precious

Semi Precious


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