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Gedrite
Gedrite

Sunstone
Sunstone



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Gedrite
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Sunstone

Gedrite and Sunstone Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak to moderate
Weak or absentWalter Schumann

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.625-1.7181.53-1.55
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Triclinic

Birefringence

-99990.007-0.010
0 0.296
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Clarity

Transparent
Transparent to translucent

Gedrite and Sunstone Optic Character

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

Gedrite and Sunstone Transparency

Similar to their colors, Gedrite and Sunstone 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, Gedrite is Transparent while Gedrite is Transparent in appearance.