Amethyst and Apache Tear Optical Properties

Amethyst

Apache Tear

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

None

Not Available

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Transparent to translucent

Not Available

1.5 Refractive Index

1.544-1.553Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Amorphous

1.8 Birefringence

0.009Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Amethyst and Apache Tear Optic Character

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

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