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Elbaite
Elbaite

Brucite
Brucite



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Elbaite
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Brucite

Elbaite and Brucite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Pale green
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
TransparentMichael O’Donoghue

Refractive Index

1.614-1.6661.56-1.60
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.014-0.0320.010-0.020
0 0.296
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Clarity

Transparent
TransparentMichael O’Donoghue

Elbaite and Brucite Optic Character

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

Similar to their colors, Elbaite and Brucite 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.