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Albite
Albite

Dravite
Dravite



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Albite
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Dravite

Albite and Dravite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
colorless.
Very strong: pale yellow colorless
1.3 Dispersion
1.000.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.525-1.5421.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
1.8 Birefringence
0.008-0.0110.014-0.032
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Albite and Dravite Optic Character

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

Albite and Dravite Transparency

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