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Petoskey Stone
Petoskey Stone

Sapphire
Sapphire



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Petoskey Stone
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Sapphire

Petoskey Stone and Sapphire Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
Not Available
Strong
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
Not Available1.762-1.788
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
Not Available0.008-0.009
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Petoskey Stone and Sapphire Optic Character

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

Similar to their colors, Petoskey Stone and Sapphire 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 Not Available while Petoskey Stone is Not Available in appearance.