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Petoskey Stone and Euclase Optical Properties


Euclase and Petoskey Stone Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
Weak: colorless-(greenish) yellow   

Dispersion
Not Available   
0.02   
23

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
Not Available   
1.650-1.677   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   

Birefringence
Not Available   
0.019-0.025   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Petoskey Stone and Euclase Optic Character

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

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Petoskey Stone and Euclase Transparency

Similar to their colors, Petoskey Stone and Euclase 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.

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