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Iolite
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Ametrine
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Iolite
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Ametrine
Iolite
Ametrine
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.4 Dispersion
NA
0.01
Fluorite Optical Properties
▶
⊕
0.007
1
1.16 Transparency
Transparent, Translucent, Transparent to translucent
Transparent
1.17 Refractive Index
1.52-1.56
1.544-1.553
Agate Opal
▶
⊕
1
3.25
1.23 Optic Character
Not Available
Not Available
1.24 Crystal System
Orthorhombic
Trigonal
1.26 Birefringence
Not Available
0.009
Achroite
▶
⊕
0
0.296
1.30 Clarity
Transparent to translucent
Transparent
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