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Spodumene
Spodumene

Dravite
Dravite



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Spodumene and Dravite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong in kunzite: α-purple
Very strong: pale yellow colorless
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
0.02
Rank: 22 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.657-1.681
1.614-1.666
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
1.8 Birefringence
0.014-0.018
0.014-0.032
1.9 Clarity
Gems
Transparent

Spodumene and Dravite Optic Character

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

Spodumene and Dravite Transparency

Similar to their colors, Spodumene 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, Spodumene is Transparent while Spodumene is Transparent in appearance.