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Prasiolite
Prasiolite

Erythrite
Erythrite



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Prasiolite
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Erythrite

Prasiolite and Erythrite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Subadamantine, Pearly
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.544-1.553
1.626-1.629
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.009
Not Available
1.9 Clarity
Transparent
Not Available

Prasiolite and Erythrite Optic Character

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

Prasiolite and Erythrite Transparency

Similar to their colors, Prasiolite and Erythrite 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, Prasiolite is Translucent and Transparent while Prasiolite is Translucent and Transparent in appearance.