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Piemontite
Piemontite

Idocrase
Idocrase



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Piemontite
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Idocrase

Piemontite and Idocrase Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

visible
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.725-1.7561.67-1.76
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
tetragonal

Birefringence

0.025-0.076-9999
0 0.296
👆🏻

Clarity

-
-

Piemontite and Idocrase Optic Character

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

Similar to their colors, Piemontite and Idocrase 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.