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PHYSICAL PROPERTIES
OF GEMSTONE |
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(G.) Specific gravity |
(H.M.) Mohs Hardness |
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(R.I.) Refractive Index |
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Name |
(H.M) |
(G.) |
(R.I.) |
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Diamond |
10.0 |
3.52 |
2.42 |
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Ruby |
9.0 |
3.96-47.05 |
1.76-1.78 |
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Sapphire |
9.0 |
3.96-4.05 |
1.76-1.78 |
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Emerald |
7.5-8 |
2.63-2.80 |
1.56-1.60 |
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Aquamarine |
7.5-8 |
2.36-2.80 |
1.56-1.60 |
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Golden Beryl |
7.5-8 |
2.63-2.80 |
1.56-1.60 |
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Tourmaline |
7-.7.5 |
3-3.2 |
1.62-1.64 |
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Spinel |
8 |
3.58-3.64 |
1.71-1.74 |
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Peridot |
6.5-7 |
3.30-3.50 |
1.65-1.70 |
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Topaz |
8 |
3.40-3.60 |
1.63-1.64 |
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Amethyst |
7 |
2.65-2.66 |
1.54-1.55 |
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Citrine |
7 |
2.65-2.66 |
1.54-1.55 |
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Garnet |
6.5-7.5 |
3.41-4.2 |
1.74-1.89 |
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