Labradorite and Axinite Optical Properties

Labradorite

Axinite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous

1.2 Pleochroism

From the Congo

Strong

1.3 Dispersion

Albite Optical ..

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0.01

Rank: 28 (Overall)▶

0.02

Rank: 21 (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.554-1.573

1.656-1.704

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Triclinic

1.8 Birefringence

0.008-0.010

0.009-0.012

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Labradorite and Axinite Optic Character

Labradorite and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Labradorite and Axinite 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 Labradorite and Axinite 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. Axinite has Biaxial/+ character.

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Labradorite and Axinite Transparency

Similar to their colors, Labradorite and Axinite 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, Labradorite is Translucent, Transparent and Transparent to translucent while Labradorite is Translucent, Transparent and Transparent to translucent in appearance.