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Stolzite
Stolzite

Mottramite
Mottramite



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Stolzite
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Mottramite

Stolzite and Mottramite Optical Properties

Optical Properties

Luster

Resinous, Subadamantine
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.180-2.1902.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Orthorhombic

Birefringence

0.0900.150
0 0.296
👆🏻

Clarity

-
-

Stolzite and Mottramite Optic Character

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

Stolzite and Mottramite Transparency

Similar to their colors, Stolzite 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, Stolzite is while Stolzite is in appearance.