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Elbaite
Elbaite

Brookite
Brookite



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Elbaite
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Brookite

Elbaite and Brookite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Pale green
Very weak
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.614-1.6662.583-2.741
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.014-0.0320.117
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Elbaite and Brookite Optic Character

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

Similar to their colors, Elbaite and Brookite 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.