Quartz - the term quartzite is applied to to low grade metamorphic rocks formed predomiently of quartz, mostly they are altered sandstones. Alog with the quartz there may be low abundances of many different minerals e.g. mica, or feldspar.
Quarzite.
Quarzite.
Gitchie Manitou State Park Sioux Quarzite
Rocks contain minerals in them and minerals are just the minerals themselves.
90% of minerals are silicate.
Quartzite was originally a sandstone that underwent metamorphism, resulting in a harder and more compact rock with a high quartz content. During the metamorphic process, the sandstone was subjected to heat and pressure, causing the quartz grains to recrystallize and cement together, forming quartzite.
common minerals are not rare minerals eg:not rare
Fruits themselves are not minerals, but they contain vitamins and minerals.
Major Minerals
because racks are rocks and minerals are minerals
Minerals, Minerals and more Minerals
silicate minerals and non silicate minerals