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Elbaite
Elbaite

Gedrite
Gedrite



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Elbaite
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Gedrite

Elbaite and Gedrite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Fibrous, Vitreous
1.2 Pleochroism
Pale green
Weak to moderate
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.7 Transparency
Transparent
Transparent
1.8 Refractive Index
1.614-1.6661.625-1.718
Agate Opal
1 3.25
2.1 Optic Character
Not Available
Not Available
2.4 Crystal System
Trigonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
2.6 Birefringence
0.014-0.032Not Available
Achroite
0 0.296
2.7 Clarity
Transparent
Transparent

Elbaite and Gedrite Optic Character

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

Elbaite and Gedrite Transparency

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