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Amethyst
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Unakite
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Amethyst
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Unakite
Amethyst
Unakite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
None
Not Available
1.3 Dispersion
0.01
NA
Fluorite Optical Properties
▶
⊕
0.007
1
1.8 Transparency
Transparent, Transparent to translucent
Gemstones of the world (2001)
1.9 Refractive Index
1.544-1.553
1.525
Agate Opal
▶
⊕
1
3.25
1.10 Optic Character
Not Available
Not Available
1.12 Crystal System
Trigonal
monoclinic
1.13 Birefringence
0.009
Not Available
Achroite
▶
⊕
0
0.296
1.20 Clarity
Transparent
Gemstones of the world (2001)
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