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Starlite
Starlite

Mottramite
Mottramite



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Starlite
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Mottramite

Starlite and Mottramite Optical Properties

Optical Properties

Luster

-
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.790-2.0152.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.005-0.0550.150
0 0.296
👆🏻

Clarity

Transparent
-

Starlite and Mottramite Optic Character

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

Starlite and Mottramite Transparency

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