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Gemstones


Black Gemstones

11 Gemstones Found

Dispersion
Not Available
Specific Gravity
3.00
Mohs Hardness
5-6
Refractive Index
1.613-1.628
Optic Character
Not Available
Talisman
Not Available


Dispersion
Not Available
Specific Gravity
3.50-3.60
Mohs Hardness
6
Refractive Index
1.720-1.778
Optic Character
Not Available
Talisman
Not Available


Dispersion
Not Available
Specific Gravity
3.40-4.20
Mohs Hardness
Not Available
Refractive Index
1
Optic Character
Not Available
Talisman
Not Available



Dispersion
Not Available
Specific Gravity
3.20-3.50
Mohs Hardness
6-7
Refractive Index
1.695
Optic Character
Not Available
Talisman
Not Available


Dispersion
Not Available
Specific Gravity
3.87-4.14
Mohs Hardness
5.5-6
Refractive Index
2.583-2.741
Optic Character
Not Available
Talisman
Not Available


Dispersion
0.07
Specific Gravity
6.86-7.03
Mohs Hardness
6-7
Refractive Index
1.990-2.105
Optic Character
Not Available
Talisman
Not Available

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