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Anthophyllite
Anthophyllite

Sellaite
Sellaite



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Anthophyllite
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Sellaite

Anthophyllite and Sellaite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
-
0.01
Transparent
1.603-1.690
Biaxial/+
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
-9999
Transparent
 
Vitreous
-
0.03
Transparent
1.378-1.390
-
tetragonal
0.012
Transparent

Anthophyllite and Sellaite Optic Character

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

Anthophyllite and Sellaite Transparency

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