felspar
101aventurine — /aˈvɛntʃərin/ (say ah venchuhreen), / ən/ (say uhn) noun 1. an opaque, brown glass containing fine, gold coloured particles; goldstone. 2. any of several varieties of minerals, especially quartz or felspar, spangled with bright particles of mica …
102diabase — /ˈdaɪəbeɪs/ (say duyuhbays) noun 1. a dark igneous rock consisting essentially of augite and felspar; an altered dolerite. 2. US a dark igneous rock occurring as minor intrusives composed essentially of labradorite and pyroxene. 3. Obsolete… …
103diorite — /ˈdaɪəraɪt/ (say duyuhruyt) noun a granular igneous rock consisting essentially of plagioclase felspar and hornblende. {French, from Greek dior(izein) distinguish + ite ite1} –dioritic /daɪəˈrɪtɪk/ (say duyuh ritik), adjective …
104feldspar — /ˈfɛldspa / (say feldspah), /ˈfɛlspa / (say felspah) noun → felspar …
105felsite — /ˈfɛlsaɪt/ (say felsuyt) noun a dense, igneous rock consisting typically of felspar and quartz, both of which may appear as phenocrysts. {fels(par) + ite1} –felsitic /fɛlˈsɪtɪk/ (say fel sitik), adjective …
106felspathoid — /ˈfɛlspəθɔɪd/ (say felspuhthoyd) noun any of a group of minerals, as leucite, which are similar in composition to felspars but contain less silica than the corresponding felspar …
107felspathose — /ˈfɛlspəθoʊs/ (say felspuhthohs) adjective of, relating to, consisting of, or containing felspar …
108gneiss — /ˈnaɪs / (say nuys) noun a coarse grained metamorphic rock, generally made up of bands which differ in colour and composition, some bands being rich in felspar and quartz, others rich in hornblende or mica. {German} –gneissic, adjective …
109granite — /ˈgrænət / (say granuht) noun 1. a granular igneous rock composed chiefly of felspar (orthoclase) and quartz, usually with one or more other minerals, as mica, hornblende, etc., much used in building, and for monuments, etc. 2. great hardness or… …
110granulite — /ˈgrænjəlaɪt/ (say granyuhluyt) noun a metamorphic rock composed of even sized interlocking granular minerals, such as quartz, felspar, mica or hornblende, and showing a definite banding. {granul(e) + ite1} –granulitic /grænjəˈlɪtɪk/ (say granyuh …
