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Dravite
Dravite

Fire Agate
Fire Agate



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Dravite
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Fire Agate

Dravite and Fire Agate Optical Properties

Optical Properties

Luster

Vitreous
Waxy, Vitreous, Greasy, Silky

Pleochroism

Very strong: pale yellow colorless
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.614-1.6661.530-1.543
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.014-0.0320.003-0.009
0 0.296
👆🏻

Clarity

Transparent
Translucent

Dravite and Fire Agate Optic Character

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

Dravite and Fire Agate Transparency

Similar to their colors, Dravite and Fire Agate 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, Dravite is Transparent while Dravite is Transparent in appearance.