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Amethyst
Amethyst

Boleite
Boleite



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Amethyst
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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
None
Not Available
1.3 Dispersion
0.010.07
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Transparent
1.5 Refractive Index
1.544-1.5532.05
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Isometric
1.8 Birefringence
0.0090.010
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent