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Austinite
Austinite

Erythrite
Erythrite



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Austinite
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Erythrite

Austinite and Erythrite Optical Properties

Optical Properties

Luster

Subadamantine, Silky
Subadamantine, Pearly

Pleochroism

-
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.7591.626-1.629
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.024-9999
0 0.296
👆🏻

Clarity

-
-

Austinite and Erythrite Optic Character

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

Similar to their colors, Austinite and Erythrite 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.