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Orthoclase and Phosphophyllite Optical Properties


Phosphophyllite and Orthoclase Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
colorless.   
NilArthur Thomas   

Dispersion
0.01   
28
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Gemmological Tables (2004) More from other references   

Refractive Index
1.518-1.536   
1.595-1.621   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.0050-0.0060   
0.021   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
TransparentUlrich Henn and Claudio C. Milisenda   

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Orthoclase and Phosphophyllite Optic Character

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

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

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