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Schorl
Schorl

Amethyst
Amethyst



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Schorl
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Amethyst

Schorl and Amethyst Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Very strong: yellow-brown pale yellow
None
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Transparent to translucent
1.5 Refractive Index
1.635-1.6721.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.0250.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Schorl and Amethyst Optic Character

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

Schorl and Amethyst Transparency

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