Definition of Syenites. Meaning of Syenites. Synonyms of Syenites

Here you will find one or more explanations in English for the word Syenites. Also in the bottom left of the page several parts of wikipedia pages related to the word Syenites and, of course, Syenites synonyms and on the right images related to the word Syenites.

Definition of Syenites

Syenite
Syenite 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 composed of orthoclase and hornblende, the latter often replaced or accompanied by pyroxene or mica. Syenite sometimes contains nephelite (el[ae]olite) or leucite, and is then called nephelite (el[ae]olite) syenite or leucite syenite.

Meaning of Syenites from wikipedia

- relatively small concentrations (< 5%). It is considered a granitoid. Some syenites contain larger proportions of mafic components and smaller amounts of felsic...
- occurs in several nepheline-syenites. A great number of interesting and rare minerals have been recorded from nepheline syenites and the pegmatite veins which...
- Garland Peak Syenite, Red Hill complex, New Hampshire: Camptonitic parental magmas and differentiation to silica-oversaturated syenites. Contributions...
- amount of its quartz, into quartz-syenites and syenites. At the margins of the outcrop patches of nepheline syenite occur; usually the nepheline is decomposed...
- Syenite is an unincorporated community in southern St. Francois County, in the U.S. state of Missouri. The community lies on Missouri Route DD, west of...
- Concord Gabbro-Syenite Complex is a paleozoic pluton located in North Carolina. The complex is mainly composed of gabbro and syenite and is of the Silurian-Devonian...
- history. The story then follows three female orogenes (Essun, Damaya, and Syenite) from across the Stillness. Essun is a middle-aged woman with two young...
- Occurrence within zoned bodies, enveloped by amphibole bearing syenites and quartz-syenites rocks, Broken and/or bent twin lamellae in plagioclase (albite)...
- alkali feldspar – a plutonic rock with <5% normative quartz Nepheline syenite – Holocrystalline plutonic rock – A silica-undersaturated plutonic rock...
- minerals are calcium carbonate (limestone), building stone, nepheline syenite, olivine, iron, titanium, and nickel. In 2017, the Government Pension Fund...