Diamonds are the hardest rock.
Diamonds sell for $4,750 at the Rock Isle Rock Shop.
The hardest rock is PANTERA, or Diamonds. Depending on your question.
Diamonds are the kind of rock that are diamonds
Diamonds are formed from carbon.
Some diamonds may be included in kimberlite.
The diamonds themselves are, well, diamonds. They're found mixed in with other rock, though.
diamonds
Diamonds are found in the rock Kimberlite.
Diamonds are typically formed from carbon that has been subjected to high pressure and temperature deep within the Earth's mantle. The parent rock of diamonds is believed to be a type of igneous rock called kimberlite or lamproite, which are formed from magma that originates from the mantle.
Can metal really be compared to rock? I'd say diamonds, but what do I know.
kimberlite
No.