olivine
Quartz is a mineral composed of silicon and oxygen, SiO2.
Quartz.
Silicate minerals are those composed of silicon and oxygen atoms. Some of these minerals are quartz, feldspar, mica and olivine.
Sand varies in composition, but the most common types of sand are composed of silicate minerals. Quartz sand is composed almost entirely of silicon and oxygen. Arkosic sand may include sodium, potassium, and aluminum as well.
quartz
Examples: hematite (Fe2O3), ilmenite (FeTiO3), pitchblende (UO2). The most common such oxide mineral is silicon dioxide in sand.
Quartz: The most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz.
Examples: hematite (Fe2O3), ilmenite (FeTiO3), pitchblende (UO2). The most common such oxide mineral is silicon dioxide in sand.
One is silicon, but I don't know the other:(oxygen
Quartz is the single mineral that is most common in the crust. In total volume, the various types of feldspars are the most common, but they vary somewhat from each other in their chemical properties.Silicate minerals (quartz, feldspars, micas, hornblende, olivine, etc.) are composed of the elements silicon and oxygen - plus other elements - and are the most common groupof minerals in the crust.
The most common mineral by mass on the Earth's surface is Silca (Silicon Dioxide)
its silicate