Question

The coarse type of sandstone is known as _​

Answer 1

Answer:

Arenites are types of sandstone that have less than 15% clay matrix in between the framework grains. Quartz arenites are sandstones that contain more than 90% of siliceous grains. Grains can include quartz or chert rock fragments. Quartz arenites are texturally mature to supermature sandstones.

Explanation:

Answer 2

Answer:

Arenites is the answer.