- aegirine-augite
- эгирин-авгит
English-Russian dictionary of geology. 2011.
aegirine-augite
Смотреть что такое "aegirine-augite" в других словарях:
aegirine-augite — noun see aegirite … Useful english dictionary
Aegirine — crystals in matrix General Category Silicate mineral, Pyroxene … Wikipedia
Aegirine — Catégorie IX : silicates[1] Aegirine et analcime Mont St Hilaire Québec 6 … Wikipédia en Français
aegirine — Pyroxene mineral, sodium and iron silicate (NaFe+3Si2O6), commonly found in alkaline igneous rocks, particularly in syenites (composed of an alkali feldspar and a ferromagnesian mineral) and syenite pegmatites. It also occurs in schists. Aegirine … Universalium
pyroxene — pyroxenic /puy rok sen ik/, adj. /puy rok seen, peuh , puy rok seen /, n. any of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of… … Universalium
Leucite — is a rock forming mineral composed of potassium and aluminium tectosilicate K [AlSi2O6] . Crystals have the form of cubic icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore… … Wikipedia
Nepheline syenite — of the Intrusive Complex of Tanguá, State of Rio de Janeiro, Brasil (Motoki et al., 2011a) Nephelene syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. The rocks are mostly pale colored, grey or… … Wikipedia
Pyroxene — Figure 1: A sample of pyroxenite, a rock consisting mostly of pyroxene minerals. The pyroxenes are a group of important rock forming inosilicate minerals found in many igneous and metamorphic rocks. They share a common structure consisting of… … Wikipedia
Trachyte — is an igneous, volcanic rock with an aphanitic to porphyritic texture. The mineral assemblage consists of essential alkali feldspar; relatively minor plagioclase and quartz or a feldspathoid such as nepheline may also be present. (See the QAPF… … Wikipedia
Borolanite — is one of the most remarkable rocks of the British Isles, found on the shores of Loch Borolan in Sutherland shire, after which it has been named. In this locality there is a considerable area of granite rich in red alkali feldspar, and passing,… … Wikipedia
tinguaite — ▪ rock pale to dark green, very fine grained igneous rock that may be considered the dike (tabular body injected in fissures) equivalent of phonolite. It contains alkali feldspar and nepheline, with aegirine or aegirine augite. Tinguaite in … Universalium
