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Dravite
Dravite

Topazolite
Topazolite



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Dravite
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Topazolite

Dravite and Topazolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Subadamantine
1.2 Pleochroism
Very strong: pale yellow colorless
Not Available
1.3 Dispersion
0.020.06
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.614-1.6661.855-1.895
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Not Available
1.8 Birefringence
0.014-0.032Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Dravite and Topazolite Optic Character

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

Dravite and Topazolite Transparency

Similar to their colors, Dravite and Topazolite 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, Dravite is Transparent while Dravite is Transparent in appearance.