Williamsite and Elbaite Optical Properties

Williamsite

Elbaite

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1 Optical Properties

1.1 Luster

Waxy, Silky, Resinous, Greasy

Vitreous

1.2 Pleochroism

Not Available

Pale green

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

Transparent

1.5 Refractive Index

1.530-1.5751.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

Not Available0.014-0.032

0 0.296

1.9 Clarity

TranslucentHerve Nicolas Lazzarelli

Transparent

Williamsite and Elbaite Optic Character

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

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Williamsite and Elbaite Transparency

Similar to their colors, Williamsite and Elbaite 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, Williamsite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli while Williamsite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli in appearance.