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Pectolite
Pectolite

Realgar
Realgar



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Pectolite
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Realgar

Pectolite and Realgar Optical Properties

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Optical Properties

Luster

Silky
-

Pleochroism

-
Nearly colorless to pale golden yellowAnthony et al

Dispersion

0.010.06
0.005 1
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Transparency

Transparent
-

Refractive Index

1.595-1.6452.538-2.704
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
-

Birefringence

0.028-0.0380.166
0 0.296
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Clarity

Transparent
-

Pectolite and Realgar Optic Character

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

Similar to their colors, Pectolite and Realgar 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.