potash feldspar
1potash feldspar — any of the feldspar minerals having the composition KAlSi3O8, as orthoclase. [1860 65] * * * potash feldspar, = orthoclase. (Cf. ↑orthoclase) …
2potash feldspar — any of the feldspar minerals having the composition KAlSi3O8, as orthoclase. [1860 65] * * * …
3Feldspar — Feld spar , Feldspath Feld spath , n. [G. feldspath; feld field + spath spar.] (Min.) A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta.… …
4Feldspath — Feldspar Feld spar , Feldspath Feld spath , n. [G. feldspath; feld field + spath spar.] (Min.) A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case …
5potashfeldspar — potash feldspar n. See orthoclase. * * * …
6igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …
7sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
8Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian …
9trachyte — trachytic /treuh kit ik/, trachytoid /trak i toyd , tray ki /, adj. /tray kuyt, trak uyt/, n. a fine grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive… …
10Holungen — Infobox Ort in Deutschland image photo = Wappen = Wappen Holungen.png lat deg = 51 |lat min = 29 |lat sec = 27 lon deg = 10 |lon min = 23 |lon sec = 36 Lageplan = Bundesland = Thüringen Landkreis = Eichsfeld Verwaltungsgemeinschaft = Eichsfeld… …
