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Peridot
Peridot

Sphalerite
Sphalerite



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Peridot
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Sphalerite

Peridot and Sphalerite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Adamantine
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
AbsentWalter Schumann
1.3 Dispersion
0.020.16
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent
1.5 Refractive Index
1.64-1.692.368-2.371
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Isometric
1.8 Birefringence
0.036Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Peridot and Sphalerite Optic Character

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

Similar to their colors, Peridot and Sphalerite 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.