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Amethyst
Amethyst

Ruby
Ruby



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Amethyst
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Ruby

Amethyst and Ruby Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
None
Strong: purplish-red
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
0.02
Rank: 21 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to translucent
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.544-1.553
1.762-1.778
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.009
0.008
1.9 Clarity
Transparent
Transparent

Amethyst and Ruby Optic Character

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

Amethyst and Ruby Transparency

Similar to their colors, Amethyst and Ruby 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.