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Benitoite
Benitoite

Turquoise
Turquoise



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Benitoite
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Turquoise

Benitoite and Turquoise Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Waxy
1.2 Pleochroism
O = colorless; E = purple
Weak
1.3 Dispersion
0.04None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent, Opaque
1.5 Refractive Index
1.757-1.8041.610-1.650
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Triclinic
1.8 Birefringence
0.0470.040
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Benitoite and Turquoise Optic Character

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

Benitoite and Turquoise Transparency

Similar to their colors, Benitoite 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, Benitoite is Transparent while Benitoite is Transparent in appearance.