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Petalite and Marble Optical Properties


Marble and Petalite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
0.01   
25
Not Available   

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

Refractive Index
1.502-1.523   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.012-0.016   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Not Available   

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Petalite and Marble Optic Character

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

Similar to their colors, Petalite and Marble 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, Petalite is Gemmological Tables (2004) More from other references while Petalite is Gemmological Tables (2004) More from other references in appearance.

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