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Swiss blue topaz
Swiss blue topaz

Hercynite
Hercynite



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Swiss blue topaz
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Hercynite
1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.4 Pleochroism
Not Available
Not Available
1.7 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.13 Transparency
Not Available
Translucent
1.14 Refractive Index
Not Available1.80-1.83
Agate Opal
1 3.25
1.15 Optic Character
Not Available
Not Available
1.16 Crystal System
Not Available
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
1.17 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.18 Clarity
Not Available
Translucent