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Gems Found in USA

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Optic Character


Clarity


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78 Gemstones Found
Gemstones
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The colors created by dispersion produce little fires like visualizations within the gem, thus create a "fire" effect.
Dispersion
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Its a measure of heaviness of the gemstone, thus more the gravity, heavier is the stone.
Specific Gravity
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Its the gem’s ability to resist scratching of its surface.
Mohs Hardness
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Gemstones with a higher RI seem more brilliant since more light is returned back out of the top or crown of the stone.
Refractive Index
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Optical properties influence the cleavage in the gemstone crystal. This is an important parameter while shaping a gemstone.
Optic Character
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Talisman are believed to bring good luck to one who possesses it. Whose fortune do this gemstone change?
Talisman
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0.16
3.95-4.10
3.5-4
2.368-2.371
Not Available
Not Available
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0.04
3.61-3.68
6-6.5
1.757-1.804
Not Available
Not Available
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0.03
3.95-4.30
7-7.5
1.770-1.820
Not Available
Not Available
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0.03
4.12-4.18
7-7.5
1.789-1.820
Not Available
Not Available
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0.02
3.64-3.66
8
1.73
Not Available
Not Available
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0.02
1.54-1.55
6.5-7
1.64-1.69
Not Available
Not Available

0.02
3.25-3.50
Not Available
1.700-1.725
Uniaxial/-
Not Available
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0.02
3.26-3.36
6.5-7
1.656-1.704
Biaxial/+
Not Available
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0.02
3.95-4.03
9
1.762-1.788
Not Available
Not Available
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0.02
3.46-3.50
6-7
1.665-1.712
Not Available
Not Available
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