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Liddicoatite
Liddicoatite

Anthophyllite
Anthophyllite



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Liddicoatite
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Anthophyllite

Liddicoatite and Anthophyllite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Strong: dark brown light brownAnthony et al
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

-99991.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Liddicoatite and Anthophyllite Optic Character

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

Liddicoatite and Anthophyllite Transparency

Similar to their colors, Liddicoatite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.