Why is quartz abundant in soils?

Answer 1

Quartz is abundant in soils for three reasons. First, it is an abundant mineral to begin with. Second, it is hard and tough; it doesn't break up and crumble into smaller and smaller pieces very easily. Third, it's more resistant to water and weathering than most other minerals you'll find at the surface of the Earth.

Consider granite. It contains quartz, feldspar, and mica. Water eventually degrades the feldspar and mica to clay minerals, but it leaves the quartz behind.

Answer 2

Quartz is abundant in soils because it is a very common mineral found in Earth's crust. It is resistant to weathering and does not easily break down into other minerals, making it a durable component of soil. Additionally, quartz is often brought to the surface through processes like erosion and sedimentation, further adding to its presence in soils.