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Amethyst
Amethyst

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Amethyst and Peridot Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
None
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
0.02
Rank: 18 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to translucent
Transparent
1.5 Refractive Index
1.544-1.553
1.64-1.69
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.009
0.036
1.9 Clarity
Transparent
Transparent

Amethyst and Peridot Optic Character

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

Amethyst and Peridot Transparency

Similar to their colors, Amethyst 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, Amethyst is Transparent and Transparent to translucent while Amethyst is Transparent and Transparent to translucent in appearance.