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Musgravite
Musgravite

Sellaite
Sellaite



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Musgravite
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Sellaite

Musgravite and Sellaite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.02
-
1.719-1.739
-
Trigonal
0.014-0.016
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
-
0.03
Transparent
1.378-1.390
-
tetragonal
0.012
Transparent

Musgravite and Sellaite Optic Character

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

Musgravite and Sellaite Transparency

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