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Benitoite
Benitoite

Rutilated Quartz
Rutilated Quartz



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Benitoite
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Rutilated Quartz

Benitoite and Rutilated Quartz Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

O = colorless; E = purple
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.757-1.8041.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Hexagonal

Birefringence

0.0470.009
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benitoite and Rutilated Quartz Optic Character

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

Similar to their colors, Benitoite and Rutilated Quartz 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.