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Optic Character
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Biaxial/+
Clarity
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Gemmological Tables (2004) More from other references
Gemstones of the world (2001)
OpaqueHerve Nicolas Lazzarelli
Translucent
Transparent
Transparent to nearly opaque
TransparentUlrich Henn and Claudio C. Milisenda
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16 Gemstones Found
Gemstones
Dispersion
Specific Gravity
Mohs Hardness
Refractive Index
Optic Character
Talisman
Alexandrite
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Not Available
3.69-3.81
8.5
1.739-1.770
Biaxial/+
Not Available
Ametrine
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0.01
2.65
7
1.544-1.553
Not Available
Not Available
Charoite
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Not Available
2.54-2.78
5-6
1.545-1.560
Not Available
Not Available
Fluorite
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0.01
3.00-3.25
4
1.432-1.436
Not Available
Not Available
Malachite
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None
3.25-4.10
3.5-4
1.655-1.909
Not Available
Not Available
Spinel
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0.02
3.64-3.66
8
1.73
Not Available
Not Available
Unakite
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Not Available
2.85-3.20
6-7
1.525
Not Available
Not Available
Amethyst
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0.01
2.65
7
1.544-1.553
Not Available
Not Available
Azurmalachite
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Not Available
3.70-3.95
3.5-4
1.655-1.909
Biaxial/+
Not Available
Citrine
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0.01
2.65
7
1.544-1.553
Not Available
Not Available
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List of All Gemstones
»More
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 Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Chrome Tremolite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More Gemstone Comparison