mud - soil with mud, muck, or mire; The child mucked up his shirt while playing ball in the garden muck up, muck, mire begrime, bemire, colly, dirty, grime, soil - make soiled, filthy, or dirty; don't soil your clothes when you play outside!
Quartz is one of the most common minerals in the Earth's crust. It is made up of silicon dioxide (SiO2), otherwise known as silica. White sand is primarily made from quartz. Click here to find out more.
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 siliconâoxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.