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Austinite
Austinite

Petoskey Stone
Petoskey Stone



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Austinite
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Petoskey Stone

Austinite and Petoskey Stone Optical Properties

Optical Properties

Luster

Subadamantine, Silky
-

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.759-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.024-9999
0 0.296
👆🏻

Clarity

-
-

Austinite and Petoskey Stone Optic Character

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

Similar to their colors, Austinite and Petoskey Stone 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.