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Bertrandite
Bertrandite

Rutilated Quartz
Rutilated Quartz



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Bertrandite
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Rutilated Quartz

Bertrandite and Rutilated Quartz Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

none.
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

TransparentAnthony et al
Transparent, Translucent, Transparent to translucent

Refractive Index

1.583-1.6141.544-1.553
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Hexagonal

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

TransparentAnthony et al
Transparent

Bertrandite and Rutilated Quartz Optic Character

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

Bertrandite and Rutilated Quartz Transparency

Similar to their colors, Bertrandite 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, Bertrandite is TransparentAnthony et al while Bertrandite is TransparentAnthony et al in appearance.