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Peridot
Peridot

Labradorite
Labradorite



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Labradorite

Peridot and Labradorite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Pearly
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
From the Congo
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
0.01
Rank: 28 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.64-1.69
1.554-1.573
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.036
0.008-0.010
1.9 Clarity
Transparent
Transparent

Peridot and Labradorite Optic Character

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

Similar to their colors, Peridot and Labradorite 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.