Indicolite Blue Tourmaline and Fayalite Optical Properties

Indicolite Blue Tourmaline

Fayalite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Resinous

1.2 Pleochroism

Strong: dark blue light blueWalter Schumann

Faint

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.614-1.6661.827-1.879

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

0.014-0.0400.042-0.051

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Indicolite Blue Tourmaline and Fayalite Optic Character

Indicolite Blue Tourmaline and Fayalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Indicolite Blue Tourmaline and Fayalite 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 Indicolite Blue Tourmaline and Fayalite 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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Indicolite Blue Tourmaline and Fayalite Transparency

Similar to their colors, Indicolite Blue Tourmaline and Fayalite 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, Indicolite Blue Tourmaline is Translucent and Transparent while Indicolite Blue Tourmaline is Translucent and Transparent in appearance.