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Prasiolite
Prasiolite

Willemite
Willemite



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Prasiolite
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Willemite

Prasiolite and Willemite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Resinous
1.2 Pleochroism
Very weak: light green pale greenWalter Schumann
NilArthur Thomas
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.544-1.5531.687-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.0090.028-0.030
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Prasiolite and Willemite Optic Character

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

Similar to their colors, Prasiolite and Willemite 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.