Tourmaline Bi Color and Franklinite Optical Properties

Tourmaline Bi Color

Franklinite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

1.61-1.66Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

Translucent

Tourmaline Bi Color and Franklinite Optic Character

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

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