orthoclase feldspar
111Perthite — Perth ite, n. [So called from Perth, in canada.] (Min.) A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colors. {Per*thit ic}, a. [1913 Webster] …
112Perthitic — Perthite Perth ite, n. [So called from Perth, in canada.] (Min.) A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colors. {Per*thit ic}, a. [1913 Webster] …
113Syenite — Sy e*nite, n. [L. Syenites (sc. lapis), from Syene, Gr. ?.] (Min.) (a) Orig., a rock composed of quartz, hornblende, and feldspar, anciently quarried at Syene, in Upper Egypt, and now called {granite}. (b) A granular, crystalline, ingeous rock… …
114microcline — noun Etymology: German Mikroklin, from mikr micr + Greek klinein to lean more at lean Date: 1849 a triclinic mineral of the feldspar group that is like orthoclase in composition …
115Weathering — This article is about weathering of rocks and minerals. For weathering of polymers, see Polymer degradation and Weather testing of polymers. Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through… …
116Montebello, New York — Montebello   Village   Location of village within the town of Ramapo and Rockland County, New …
117List of chemistry topics — This page aims to list articles related to chemistry. This is so that those interested in the subject can monitor changes to the pages by clicking on Related Changes in the sidebar and on the bottom of the page.This list is not necessarily… …
118Aphanite — (from the Greek αφανης, invisible) is a name given to certain typically dark coloured igneous rocks which are so fine grained that their component mineral crystals are not detected by the unaided eye. This texture results from rapid cooling in… …
119Kata Tjuta — Coordinates: 25°18′S 130°44′E / 25.3°S 130.733°E / 25.3; 130.733 Kata Tjuta, sometimes written Tjuṯa (Kata Joota) …
120Luxullianite — (also Luxulyanite, Luxulianite) is a rare type of granite, notable for the presence of clusters of radially arranged acicular tourmaline crystals enclosed by phenocrysts of orthoclase and quartz in a matrix of quartz, tourmaline, alkali feldspar …
