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Phosphophyllite
Phosphophyllite

Prasiolite
Prasiolite



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Phosphophyllite
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Prasiolite

Phosphophyllite and Prasiolite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.03
-
1.595-1.621
-
-
0.021
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
Very weak: light green pale greenWalter Schumann
0.01
Transparent, Translucent
1.544-1.553
-
Trigonal
0.009
Transparent

Phosphophyllite and Prasiolite Optic Character

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

Phosphophyllite and Prasiolite Transparency

Similar to their colors, Phosphophyllite and Prasiolite 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, Phosphophyllite is while Phosphophyllite is in appearance.