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Dravite
Dravite

Turquoise
Turquoise



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Dravite
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Turquoise

Dravite and Turquoise Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Waxy
1.2 Pleochroism
Very strong: pale yellow colorless
Weak
1.3 Dispersion
0.02None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent, Opaque
1.5 Refractive Index
1.614-1.6661.610-1.650
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Triclinic
1.8 Birefringence
0.014-0.0320.040
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Dravite and Turquoise Optic Character

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

Similar to their colors, Dravite and Turquoise 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.