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Turquoise
Turquoise

Brazilianite
Brazilianite



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Turquoise
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Brazilianite

Turquoise and Brazilianite Optical Properties

1 Optical Properties
1.1 Luster
Waxy
Vitreous
1.2 Pleochroism
Weak
Very weakWalter Schumann
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.610-1.6501.602-1.625
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.0400.019-0.021
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Turquoise and Brazilianite Optic Character

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

Turquoise and Brazilianite Transparency

Similar to their colors, Turquoise and Brazilianite 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.