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Optic Character
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Biaxial/+
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Gemmological Tables (2004) More from other references
Gemstones (2009)
Handbook of mineralogy (2001)
Translucent
Transparent
TransparentMichael OâDonoghue
TransparentUlrich Henn and Claudio C. Milisenda
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48 Gemstones Found
Gemstones
Dispersion
Refractive Index
Optic Character
Specific Gravity
Mohs Hardness
Talisman
Jacobsite
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Not Available
Not Available
Not Available
4.76-5.03
Not Available
Hibonite
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Not Available
1.79-1.807
Not Available
3.84
7.5-8
Not Available
Hessonite
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Not Available
1.742-1.748
Not Available
3.55-3.73
7-7.5
Not Available
Grossular
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0.02
1.730-1.760
Not Available
3.55-3.73
7-7.5
Not Available
Goldstone
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Not Available
1.530-1.550
Not Available
2.50-2.80
6
Not Available
Goethite
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Not Available
2.26-2.398
Not Available
4.27-4.29
5-5.5
Not Available
Glass
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Not Available
1.48-1.70
Not Available
2.39-4.00
4-6
Not Available
Gedrite
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Not Available
1.625-1.718
Not Available
3.15-3.259
5.5-6
Not Available
Garnet
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0.02
1.730-1.895
Not Available
3.55-4.33
6.5-7.5
Taurus
Gadolinium Gallium Garnet
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Not Available
1.97-2.03
Not Available
7.05
6.5
Not Available
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List of All Gemstones
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Chrome Tremolite
Astrology
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Physica...
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Optical...
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Benefits
Hbnerite
Astrology
|
Physica...
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Optical...
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Benefits
Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More List of All Gemstones
Gemstone Comparison
»More
Chrome Tremolite Vs Hbnerite
Astrology
|
Physica...
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Optical...
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Benefits
Kmmererite Vs Lavrovite
Astrology
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Physica...
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Optical...
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Benefits
Libyan Desert Glass Vs Magn...
Astrology
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Physica...
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Optical...
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» More Gemstone Comparison