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Pectolite
Pectolite

Brazilianite
Brazilianite



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Pectolite
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Brazilianite

Pectolite and Brazilianite Optical Properties

Optical Properties

Luster

Silky
Vitreous

Pleochroism

-
Very weakWalter Schumann

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.595-1.6451.602-1.625
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
monoclinic

Birefringence

0.028-0.0380.019-0.021
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Pectolite and Brazilianite Optic Character

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

Pectolite and Brazilianite Transparency

Similar to their colors, Pectolite 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, Pectolite is Transparent while Pectolite is Transparent in appearance.