Discussion
Kimberlite and lamproite pipes are explored for :
Answer: A
Kimberlite and lamproite pipes are explored for Diamond.
Kimberlite and lamproite are ultrapotassic magmas that rise rapidly from depths of 150 km or more, within the diamond stability field, and carry diamonds to the surface in carrot-shaped pipes. They are the primary source rocks of diamond; the Majhgawan pipe near Panna in Madhya Pradesh is India's best-known example.
Beryl is found mainly in granite pegmatites, corundum in metamorphic rocks and silica-poor igneous rocks, and quartz is ubiquitous, so none is the target of pipe exploration.
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