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Eilat stone
Eilat stone

Mottramite
Mottramite



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Eilat stone
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Mottramite

Eilat stone and Mottramite Optical Properties

Optical Properties

Luster

-
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99992.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.150
0 0.296
👆🏻

Clarity

-
-

Eilat stone and Mottramite Optic Character

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

Eilat stone and Mottramite Transparency

Similar to their colors, Eilat stone and Mottramite 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, Eilat stone is while Eilat stone is in appearance.