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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
1 Optical Properties
1.2 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Pearly
1.4 Pleochroism
Strong: purplish-red
AbsentWalter Schumann
1.7 Dispersion
0.02
None
Fluorite Optical Properties
▶
⊕
0.007
1
1.13 Transparency
Transparent, Translucent, Transparent to opaque
Transparent, Transparent to translucent
1.14 Refractive Index
1.762-1.778
1.518-1.527
Agate Opal
▶
⊕
1
3.25
1.15 Optic Character
Not Available
Not Available
1.16 Crystal System
Trigonal
monoclinic
1.17 Birefringence
0.008
0.006-0.007
Achroite
▶
⊕
0
0.296
1.18 Clarity
Transparent
Transparent