Peridot and Apache Tear Optical Properties

Peridot

Apache Tear

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Not Available

1.2 Pleochroism

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.64-1.69Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Amorphous

1.8 Birefringence

0.036Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Peridot and Apache Tear Optic Character

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

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Peridot and Apache Tear Transparency

Similar to their colors, Peridot and Apache Tear 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.