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Citrine
Citrine

Amethyst
Amethyst



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Citrine
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Amethyst

Citrine and Amethyst Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Natural: weak; yellow light yellow.
None
1.3 Dispersion
0.010.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Transparent to translucent
1.5 Refractive Index
1.544-1.5531.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.0090.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Citrine and Amethyst Optic Character

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

Citrine and Amethyst Transparency

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