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Clintonite
Clintonite

Dravite
Dravite



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X
Clintonite
X
Dravite

Clintonite and Dravite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

X = colorless
Very strong: pale yellow colorless

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.643-1.6481.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.012-0.0150.014-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Clintonite and Dravite Optic Character

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

Clintonite and Dravite Transparency

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