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Turquoise
Turquoise

Friedelite
Friedelite



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Turquoise
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Friedelite

Turquoise and Friedelite Optical Properties

1 Optical Properties
1.1 Luster
Waxy
Not Available
1.2 Pleochroism
Weak
NilArthur Thomas
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Translucent
1.5 Refractive Index
1.610-1.6501.627-1.663
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
0.0400.032-0.035
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Turquoise and Friedelite Optic Character

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

Similar to their colors, Turquoise and Friedelite 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.