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Adularia
Adularia

Amethyst
Amethyst



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Adularia
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Amethyst

Adularia and Amethyst Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentArthur Thomas, Gemstones (2009)
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
TransparentArthur Thomas
Transparent

Adularia and Amethyst Optic Character

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

Adularia and Amethyst Transparency

Similar to their colors, Adularia 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, Adularia is Gemstones (2009) and TransparentArthur Thomas while Adularia is Gemstones (2009) and TransparentArthur Thomas in appearance.