×

Zektzerite
Zektzerite

Dravite
Dravite



ADD
Compare
X
Zektzerite
X
Dravite

Zektzerite and Dravite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.582-1.5851.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.0030.014-0.032
0 0.296
👆🏻

Clarity

Transparent
Transparent

Zektzerite and Dravite Optic Character

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

Zektzerite and Dravite Transparency

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