mineral
Diamond
Carbon (C)
AI-generated identification · may be incorrectHardness: 10 (Mohs scale), Color: Colorless (in this image), Luster: Adamantine, Crystal Structure: Isometric (cubic), Cleavage: Perfect in four directions, Specific Gravity: 3.52
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Physical properties
Hardness: 10 (Mohs scale), Color: Colorless (in this image), Luster: Adamantine, Crystal Structure: Isometric (cubic), Cleavage: Perfect in four directions, Specific Gravity: 3.52
Formation & geological history
Formed under extreme heat and pressure at depths of 140-190 km in the Earth's mantle over billions of years; brought to the surface by kimberlite eruptions.
Uses & applications
Used in jewelry (engagement rings), industrial cutting and grinding tools, heat sinks in electronics, and scientific research.
Geological facts
Diamonds are the hardest known natural substance. The Hope Diamond is one of the most famous specimens. They can be over 3 billion years old.
Field identification & locations
Identified by high refractive index, extreme hardness, and lack of reactivity to chemicals; commonly found in kimberlite pipes or alluvial deposits in Africa, Russia, and Canada.
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