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Phenakite
Phenakite

Antimony trioxide
Antimony trioxide



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Phenakite
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Antimony trioxide

Phenakite and Antimony trioxide Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
-

Dispersion

0.02-
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.650-1.6952.087
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
cubic (α)<570 °C

Birefringence

0.016-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Phenakite and Antimony trioxide Optic Character

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

Phenakite and Antimony trioxide Transparency

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