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Pyrope
Pyrope

Peridot
Peridot



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Pyrope
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Peridot

Pyrope and Peridot Optical Properties

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1 Optical Properties
1.1 Luster
Greasy, Vitreous
Vitreous, Greasy
1.2 Pleochroism
None
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.720-1.7561.64-1.69
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Orthorhombic
1.8 Birefringence
Not Available0.036
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Pyrope and Peridot Optic Character

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

Pyrope and Peridot Transparency

Similar to their colors, Pyrope and Peridot 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, Pyrope is Gemmological Tables (2004) More from other references while Pyrope is Gemmological Tables (2004) More from other references in appearance.