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Austinite
Austinite

Phenakite
Phenakite



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Austinite
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Phenakite

Austinite and Phenakite Optical Properties

Optical Properties

Luster

Subadamantine, Silky
Vitreous

Pleochroism

-
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.7591.650-1.695
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.0240.016
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Austinite and Phenakite Optic Character

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

Austinite and Phenakite Transparency

Similar to their colors, Austinite and Phenakite 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, Austinite is while Austinite is in appearance.