Question

which type of rock too hard ​

Answer 1

Answer:

Metamorphic rocks tend to be the hardest of the three types of rock, which are igneous, metamorphic, and sedimentary rocks.

Answer 2

Answer:

One type of quartz is easily identified by its hexagonal crystals, but quartz can also be found in a large mass. Quartz can be broken or weathered into the tiny pieces we know as sand. Quartz is a very hard mineral and in fact is the hardest of the common minerals. Quartz is number seven on the Mohs hardness scale.

Explanation:

please mark it brainliest and also thank it please