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Sanidine
Sanidine

Amethyst
Amethyst



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Sanidine
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Amethyst

Sanidine and Amethyst Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
WeakMichael O’Donoghue
None
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Transparent to translucent
1.5 Refractive Index
1.518-1.5361.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.005-0.0080.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Sanidine and Amethyst Optic Character

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

Sanidine and Amethyst Transparency

Similar to their colors, Sanidine 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, Sanidine is Transparent while Sanidine is Transparent in appearance.