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Gibbsite
Gahnite
Gahnite and Gibbsite Optical Properties
Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Optical Properties
Luster
Vitreous, Pearly
Vitreous
Pleochroism
colorless.
Not Available
Dispersion
Not Available
Not Available
Transparency
Not Available
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.790-1.818
Optic Character
Not Available
Not Available
Crystal System
monoclinic
cubic
Birefringence
Not Available
Not Available
Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
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