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Peridot
Peridot

Ammolite
Ammolite



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Peridot
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Ammolite

Peridot and Ammolite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Silky, Vitreous
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
None
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.64-1.691.520-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.0360.135-0.145
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Peridot and Ammolite Optic Character

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

Similar to their colors, Peridot and Ammolite 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.