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Pargasite
Pargasite

Glaucophane
Glaucophane



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Pargasite
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Glaucophane

Pargasite and Glaucophane Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

-
Strong

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.613-1.6631.606-1.637
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.020-9999
0 0.296
👆🏻

Clarity

Transparent
-

Pargasite and Glaucophane Optic Character

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

Pargasite and Glaucophane Transparency

Similar to their colors, Pargasite and Glaucophane 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, Pargasite is Transparent while Pargasite is Transparent in appearance.