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Petoskey Stone
Petoskey Stone

Zincite
Zincite



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Petoskey Stone
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Zincite

Petoskey Stone and Zincite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
-
-9999
-
Trigonal
-9999
-
 
Subadamantine, Resinous
Very weak
0.16
TransparentRobert C. Kammerling
2.013-2.029
-
Hexagonal
0.016
TransparentRobert C. Kammerling

Petoskey Stone and Zincite Optic Character

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

Petoskey Stone and Zincite Transparency

Similar to their colors, Petoskey Stone and Zincite 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, Petoskey Stone is while Petoskey Stone is in appearance.