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Turquoise
Turquoise

Andesine
Andesine



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Turquoise
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Andesine

Turquoise and Andesine Optical Properties

Optical Properties

Luster

Waxy
Vitreous

Pleochroism

Weak
colorless.

Dispersion

0.030.70
0.005 1
👆🏻

Transparency

Translucent, Opaque
Transparent, Translucent, Transparent to translucent

Refractive Index

1.610-1.6501.543-1.564
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Triclinic
Triclinic

Birefringence

0.0400.007-0.011
0 0.296
👆🏻

Clarity

Translucent
Transparent

Turquoise and Andesine Optic Character

Turquoise and Andesine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Turquoise and Andesine 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 Andesine 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. Andesine has Biaxial/+ character.

Turquoise and Andesine Transparency

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