metamorphic
Eclogite with Diamond (Kankanite/Nodule)
Ultramafic Xenolith / Diamond-bearing Eclogite
AI-generated identification · may be incorrectHardness of 6-7 for host silicates and 10 for diamond. Composed of pyrope garnet and omphacite pyroxene enclosing native carbon.
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Physical properties
Hardness of 6-7 for host silicates and 10 for diamond. Composed of pyrope garnet and omphacite pyroxene enclosing native carbon.
Formation & geological history
Formed under ultra-high pressure conditions within the Earth's upper mantle at depths exceeding 150 kilometers.
Uses & applications
Valued primarily for gem-quality diamond extraction and prized as rare geological specimens by research institutions and collectors.
Geological facts
These mantle xenoliths are brought to the surface rapidly via kimberlite pipe eruptions, acting as direct messengers from Earth's deep interior.
Field identification & locations
Identified by dense, crystalline green and red silicate matrices containing embedded diamond crystals or empty hollow cavities where diamonds were secured.
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