What exactly is ‘Soil’ or ‘Rock’ made of?

Question

I understand that it’s made up of minerals but what is in the minerals?

I just can’t put my finger on it, what is that igneous stuff made of, and are the metamorphic rocks made of the same thing??

In: Earth Science

Answer 1

[Here’s an article](http://www.physicalgeography.net/fundamentals/10d.html) that details the chemical formula of several of these minerals. Basically, you’re looking at silicon oxides with various metals or other chemicals attached.

Soil is generally sand (tiny “rocks”) with a lot of organic material (small pieces of plant, animal poop, etc.) thrown in.