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Rubellite
Rubellite

Gedrite
Gedrite



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Rubellite
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Gedrite

Rubellite and Gedrite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Fibrous, Vitreous
1.2 Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Weak to moderate
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.614-1.666
1.625-1.718
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
0.014-0.040
Not Available
1.9 Clarity
Transparent
Transparent

Rubellite and Gedrite Optic Character

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

Rubellite and Gedrite Transparency

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