Labradorite and Anthophyllite Optical Properties

Labradorite

Anthophyllite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

1.2 Pleochroism

From the Congo

When Fe-rich

1.3 Dispersion

Albite Optical ..

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0.01

Rank: 28 (Overall)▶

Not Available

Rank: N/A (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

Transparent

1.5 Refractive Index

1.554-1.573

1.603-1.690

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Triclinic

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

1.8 Birefringence

0.008-0.010

Not Available

1.9 Clarity

Transparent

Labradorite and Anthophyllite Optic Character

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

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Labradorite Vs Albite

Labradorite and Anthophyllite Transparency

Similar to their colors, Labradorite and Anthophyllite 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.

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