Piemontite and Tourmaline Bi Color Optical Properties

Piemontite

Tourmaline Bi Color

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

visible

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

1.725-1.7561.61-1.66

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.025-0.076Not Available

0 0.296

1.9 Clarity

Not Available

Piemontite and Tourmaline Bi Color Optic Character

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

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Piemontite and Tourmaline Bi Color Transparency

Similar to their colors, Piemontite and Tourmaline Bi Color 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 Not Available while Piemontite is Not Available in appearance.