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Chalcedony
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Herderite
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Chalcedony
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Herderite
Chalcedony
Herderite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Optical Properties
Luster
Pleochroism
Dispersion
Transparency
Refractive Index
Optic Character
Crystal System
Birefringence
Clarity
Vitreous
-
0.01
Translucent, Translucent to opaque
1.530-1.543
-
Trigonal
0.003-0.009
Translucent
Vitreous
-
0.01
Transparent
1.587-1.642
Biaxial/+
monoclinic
0.028-0.032
Transparent
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Chrysoprase
Moonstone
Mother of Pearl
Opal
Pearl
Ruby
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