Most of these elements come from minerals in a process called mineral nutrition.

Most nutrients, with the exception of nitrogen, originate from minerals.

It is further distinguished from similar minerals by its white (rather than blue) streak.

Clay is a mineral that forms from other minerals when water is available.

But perhaps they could be manufactured from fluorine-containing minerals on Mars.

This darker rim may have been formed from minerals excavated during the impact.

But natural typically refers to ingredients derived from plants, minerals, or algae.

These form from minerals that are dissolved in the vent fluid.

The head can be stained rusty-brown from minerals in the soil where they feed.

The color comes from minerals the glacier has scoured out along its route.