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Anthophyllite
Anthophyllite

Brazilianite
Brazilianite



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Anthophyllite
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Brazilianite

Anthophyllite and Brazilianite 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
Very weakWalter Schumann
0.01
-
1.602-1.625
-
monoclinic
0.019-0.021
TransparentUlrich Henn and Claudio C. Milisenda

Anthophyllite and Brazilianite Optic Character

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

Similar to their colors, Anthophyllite and Brazilianite 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.