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Stolzite
Stolzite

Dravite
Dravite



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Stolzite
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Dravite

Stolzite and Dravite Optical Properties

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Optical Properties

Luster

Resinous, Subadamantine
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.180-2.1901.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

Birefringence

0.0900.014-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Stolzite and Dravite Optic Character

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

Stolzite and Dravite Transparency

Similar to their colors, Stolzite 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, Stolzite is while Stolzite is in appearance.