Komatiite is a well-known source of copper ore.

False

Explanation:

The komatiite is a type of igneous rock. It is not very common igneous rock though, but instead it is relatively rare. This types of igneous rock has very high melting point of about 1,600 C degrees, and it is extremely hard rock.

The komatiite can be found only in areas where the crust is very old, or rather where the crust is the oldest on the our planet. This type of rock can be found in South Africa, in Canada, Australia, and on the Guiana shield.

The importance of this rock is mostly seen in that it is associated with nickel ore and with gold, two metals that are highly valued and used. It is easy to sea that the komatiite is found where there is gold as the places where it can be found are actually the places that also have the highest gold reserves.