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Carletonite
Carletonite

Sellaite
Sellaite



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Carletonite
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Sellaite

Carletonite and Sellaite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.517-1.5211.378-1.390
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
tetragonal

Birefringence

0.0040.012
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Carletonite and Sellaite Optic Character

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

Carletonite and Sellaite Transparency

Similar to their colors, Carletonite and Sellaite 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, Carletonite is while Carletonite is in appearance.