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Peridot
Peridot

Zoisite
Zoisite



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Peridot
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Zoisite

Peridot and Zoisite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
0.02
Rank: 19 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
1.5 Refractive Index
1.64-1.69
1.685-1.707
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.036
0.006-0.018
1.9 Clarity
Transparent
Transparent

Peridot and Zoisite Optic Character

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

Peridot and Zoisite Transparency

Similar to their colors, Peridot and Zoisite 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, Peridot is Transparent while Peridot is Transparent in appearance.