gemstone
Diamond (Cut and Faceted)
Carbon (C)
Hardness: 10 (Mohs scale), Color: Colorless (in this specimen), Luster: Adamantine, Crystal Structure: Cubic, Cleavage: Octahedral, Specific Gravity: 3.52
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Physical properties
Hardness: 10 (Mohs scale), Color: Colorless (in this specimen), Luster: Adamantine, Crystal Structure: Cubic, Cleavage: Octahedral, Specific Gravity: 3.52
Formation & geological history
Formed under intense heat and pressure deep within the Earth's mantle, then brought to the surface by volcanic eruptions of kimberlite and lamproite magmas, dating back billions of years.
Uses & applications
Primarily used in high-end jewelry (engagement rings) and industrial applications for cutting, grinding, and drilling due to its extreme hardness.
Geological facts
Diamonds are the hardest known natural substance. The Hope Diamond is one of the most famous examples, known for its rare blue color and alleged curse.
Field identification & locations
In the field, look for octahedral crystal habits in kimberlite pipes; for cut stones, identity is confirmed via thermal conductivity testing and refractive index.
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