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Benitoite
Benitoite

Peridot
Peridot



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Benitoite
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Peridot

Benitoite and Peridot Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
O = colorless; E = purple
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
1.3 Dispersion
0.040.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.757-1.8041.64-1.69
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.0470.036
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Benitoite and Peridot Optic Character

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

Benitoite and Peridot Transparency

Similar to their colors, Benitoite 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, Benitoite is Transparent while Benitoite is Transparent in appearance.