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Pectolite
Pectolite

Forsterite
Forsterite



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Pectolite
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Forsterite

Pectolite and Forsterite Optical Properties

Optical Properties

Luster

Silky
Vitreous

Pleochroism

-
colorless.

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.595-1.6451.635-1.671
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.028-0.0380.033-0.042
0 0.296
👆🏻

Clarity

Transparent
Transparent

Pectolite and Forsterite Optic Character

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

Similar to their colors, Pectolite and Forsterite 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.