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Beryl
Beryl

Prasiolite
Prasiolite



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Beryl and Prasiolite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous
Vitreous
1.2 Pleochroism
Weak to distinct
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to opaque
Transparent, Translucent
1.5 Refractive Index
1.560-1.604
1.544-1.553
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
0.0040-0.0070
0.009
1.9 Clarity
Transparent
Transparent

Beryl and Prasiolite Optic Character

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

Beryl and Prasiolite Transparency

Similar to their colors, Beryl 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, Beryl is Transparent and Transparent to opaque while Beryl is Transparent and Transparent to opaque in appearance.