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Jadeite
Jadeite

Demantoid
Demantoid



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Jadeite
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Demantoid

Jadeite and Demantoid Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Adamantine
1.2 Pleochroism
NilArthur Thomas
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.652-1.6881.880-1.890
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.013-0.020Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Jadeite and Demantoid Optic Character

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

Jadeite and Demantoid Transparency

Similar to their colors, Jadeite 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, Jadeite is Translucent while Jadeite is Translucent in appearance.