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Piemontite
Piemontite

Pectolite
Pectolite



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Piemontite
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Pectolite

Piemontite and Pectolite Optical Properties

Optical Properties

Luster

Vitreous
Silky

Pleochroism

visible
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.725-1.7561.595-1.645
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.025-0.0760.028-0.038
0 0.296
👆🏻

Clarity

-
Transparent

Piemontite and Pectolite Optic Character

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

Piemontite and Pectolite Transparency

Similar to their colors, Piemontite and Pectolite 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, Piemontite is while Piemontite is in appearance.