Diamonds are usually found in pipes 50 to 200 m across made of _____________.

A)kimberlite
B)graphite
C)metamorphic rocks

Question

Diamonds are usually found in pipes 50 to 200 m across made of _____________.

A)kimberlite 
B)graphite 
C)metamorphic rocks

Quizplus · Accepted Answer

Diamonds are usually found in pipes made of kimberlite, a volcanic rock that is formed from magma that solidifies deep in the Earth's mantle. The magma carries diamonds up to the surface where they can be mined. Graphite is a form of carbon but is not associated with diamond formation. Metamorphic rocks result from the alteration of pre-existing rocks by heat and pressure and are not typically associated with diamond deposits.

Diamonds Are Usually Found in Pipes 50 to 200 M