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Jadeite
Jadeite

Bertrandite
Bertrandite



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Jadeite
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Bertrandite

Jadeite and Bertrandite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
NilArthur Thomas
none.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.652-1.6881.583-1.614
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
1.8 Birefringence
0.013-0.020Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentAnthony et al

Jadeite and Bertrandite Optic Character

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

Similar to their colors, Jadeite and Bertrandite 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.