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Optic Character
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Color grading system
Gemmological Tables (2004) More from other references
Gems
Handbook of mineralogy (2001)
Opaque
Translucent
TranslucentHerve Nicolas Lazzarelli
TranslucentWalter Schumann
Transparent
TransparentGemdat.org
TransparentMichael OâDonoghue
TransparentUlrich Henn and Claudio C. Milisenda
TransparentWalter Schumann
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100+ Gemstones Found
Gemstones
Dispersion
Specific Gravity
Mohs Hardness
Refractive Index
Optic Character
Talisman
Albite
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1.00
2.60-2.65
6-6.5
1.525-1.542
Not Available
Not Available
Sphalerite
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0.16
3.95-4.10
3.5-4
2.368-2.371
Not Available
Not Available
Moissanite
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0.10
3.17-3.24
9-9.5
2.648-2.691
Not Available
Not Available
Andradite
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0.06
3.70-4.10
6.5-7
1.88-1.94
Not Available
Not Available
Titanite Sphene
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0.05
3.52-3.54
5-5.5
1.843-2.110
Not Available
Not Available
Anglesite
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0.04
6.30-6.39
3-3.5
1.877-1.894
Not Available
Not Available
Zircon
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0.04
3.93-4.73
7.5
1.810-2.024
Not Available
Not Available
Dioptase
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0.04
3.25-3.35
5
1.644-1.720
Not Available
Not Available
Garnet
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0.02
3.55-4.33
6.5-7.5
1.730-1.895
Not Available
Taurus
Grossular
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0.02
3.55-3.73
7-7.5
1.730-1.760
Not Available
Not Available
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List of All Gemstones
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Chrome Tremolite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More List of All Gemstones
Gemstone Comparison
»More
Chrome Tremolite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Chrome Tremolite Vs Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More Gemstone Comparison