TRUTH ABOUT DIAMOND

1. Diamond is only the gemstone composed of single element i.e. carbon.
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3.  Diamond is the hardest substance known in the world but not the toughest substance. Hardness related to resistance to scratching and toughest relate to breakage.
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5.  Diamond are mined inside the earth crust about 150 km ( 90 miles ) – and is pushed to the surface by volcanic rock called , kimberlite , or in the sea after having been carried away by rivers when they pushed to the surface.
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7.  Even though, diamond and graphite are two allotropes of carbon: pure form of same element that differs in structure.
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9.  Diamond is allotrope of carbon atoms, arrange in specific type of cubic lattice called diamond cubic.
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11.  Diamond has high dispersion (ability to disperse light into different colors ).
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13.  Pink diamond is the rarest but the title is given the pure.