Changes

*# '''Quartz grains''': are the most dominate, moderately rounded, subhedral, have high degree of hardness, and are chemical stable which allows them to survive multiple recycling events.

*# '''Quartz grains''': are the most dominate, moderately rounded, subhedral, have high degree of hardness, and are chemical stable which allows them to survive multiple recycling events.

*# '''Feldspars''': commonly alkali feldspars and plagioclase feldspars. Alkali feldspar consists of complete solid solution consisting group of minerals in which the chemical composition of the mineral can range from KAlSi3O8 to NaAlSi3O8 while Plagioclase feldspars are a complex group of solid solution minerals that range in composition from NaAlSi3O8 to CaAl2Si2O8.

*# '''Feldspars''': commonly alkali feldspars and plagioclase feldspars. Alkali feldspar consists of complete solid solution consisting group of minerals in which the chemical composition of the mineral can range from KAlSi3O8 to NaAlSi3O8 while Plagioclase feldspars are a complex group of solid solution minerals that range in composition from NaAlSi3O8 to CaAl2Si2O8.

*# '''Lithic fragments''': are pieces of ancient source rock that have yet to weather away to individual mineral grains. Lithic grains may be any fine-grained or coarse- grained igneous, metamorphic, or sedimentary rock. Although, the most commonly they are clasts of volcanic rocks.

*# '''Lithic fragments''': are pieces of ancient source rock that have yet to weather away to individual mineral grains. Lithic grains may be any fine-grained or coarse- grained [[igneous]], metamorphic, or sedimentary rock. Although, the most commonly they are clasts of volcanic rocks.

* '''Accessory minerals''' make up a small percentage of the grains in a sandstone. They commonly include micas such as muscovite and biotite, olivine, pyroxene, and corundum, zircon, tourmaline, rutile, garnet, magnetite, or other dense, resistant minerals derived from the source rock.

* '''Accessory minerals''' make up a small percentage of the grains in a sandstone. They commonly include micas such as muscovite and biotite, olivine, pyroxene, and corundum, zircon, tourmaline, rutile, garnet, magnetite, or other dense, resistant minerals derived from the source rock.

* '''Matrix''': is very fine material present within interstitial pore space between the rock grains. Sandstones are often classified on basis of amount of matrix into Arenites (quartz arenite, lithic arenite and feldspar arenite); which are texturally clean sandstones that are free of or have very little matrix, and Wackes are texturally dirty sandstones that have a significant amount of matrix.

* '''Matrix''': is very fine material present within interstitial pore space between the rock grains. Sandstones are often classified on basis of amount of matrix into Arenites (quartz arenite, lithic arenite and feldspar arenite); which are texturally clean sandstones that are free of or have very little matrix, and Wackes are texturally dirty sandstones that have a significant amount of matrix.