Iolite and Enstatite Optical Properties

Iolite

Enstatite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Pearly

1.2 Pleochroism

Not Available

Pale green to pale orange

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Transparent, Translucent

1.5 Refractive Index

1.52-1.561.650-1.680

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

Not Available0.009-0.011

0 0.296

1.9 Clarity

Transparent to translucent

Transparent

Iolite and Enstatite Optic Character

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

Similar to their colors, Iolite and Enstatite 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, Iolite is Translucent, Transparent and Transparent to translucent while Iolite is Translucent, Transparent and Transparent to translucent in appearance.