Home

Taurus Gems + -

Gemini Gems + -

Leo Gems + -

Organic Gemstones + -

Aries Gems + -

Gemstones


Turquoise and Dravite Optical Properties


Dravite and Turquoise Optical Properties


Optical Properties

Luster
Waxy   
Vitreous   

Pleochroism
Weak   
Very strong: pale yellow colorless   

Dispersion
None   
0.02   
22

Transparency
Translucent, Opaque   
Transparent   

Refractive Index
1.610-1.650   
1.614-1.666   

Optic Character
Not Available   
Not Available   

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

Birefringence
0.040   
0.014-0.032   

Clarity
Translucent   
Transparent   

Benefits >>
<< Physical Properties

Turquoise and Dravite Optic Character

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

Compare Semi Precious Gemstones

Turquoise and Dravite Transparency

Similar to their colors, Turquoise 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, Turquoise is Opaque and Translucent while Turquoise is Opaque and Translucent in appearance.

Semi Precious

Semi Precious


Compare Semi Precious Gemstones