Diamonds are usually found in pipes 50 to 200 m across made of ________.
A)graphite
B)kimberlite
C)metamorphic rocks
D)sedimentary rocks

Question

Quizplus · Accepted Answer

Diamonds are usually found in kimberlite pipes. Kimberlite is a volcanic rock that is associated with diamond-bearing deposits. It is formed from magma that rises up from deep within the Earth's mantle, bringing diamonds and other minerals with it. Graphite, metamorphic rocks and sedimentary rocks are not commonly associated with the formation of diamond deposits.

Diamonds Are Usually Found in Pipes 50 to 200 M