gemstone
Diamond
Carbon (C)
AI-generated identification · may be incorrectHardness of 10 on the Mohs scale, transparent to opaque, adamantine luster, isometric crystal system, perfect octahedral cleavage.
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Physical properties
Hardness of 10 on the Mohs scale, transparent to opaque, adamantine luster, isometric crystal system, perfect octahedral cleavage.
Formation & geological history
Formed under extreme heat and pressure in Earth's mantle, brought to the surface via deep-source volcanic eruptions called kimberlites.
Uses & applications
Used extensively in high-end jewelry as well as industrial cutting, grinding, and drilling tools.
Geological facts
Diamond is the hardest naturally occurring substance on Earth and forms deep underground over billions of years.
Field identification & locations
Identified by its extreme hardness, high refractive index, and adamantine luster; commonly mined in Africa, Russia, and Canada.
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