- acmite-augite
- акмит-авгит (разновидность авгита)
* * *акмит-авгит
English-Russian dictionary of geology. 2011.
acmite-augite
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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
Aegirine — crystals in matrix General Category Silicate mineral, Pyroxene … 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
Aegirine — Catégorie IX : silicates[1] Aegirine et analcime Mont St Hilaire Québec 6 … Wikipédia en Français
SYÉNITES ET SYÉNITES NÉPHÉLINIQUES — Le mot «syénite» désignait, du temps de Pline, les roches de Syène (Assouan), en Haute Égypte. Il fut appliqué par A. G. Werner (1788) à des roches à amphibole (hornblende) de la région de Dresde, qui se sont révélées plus tard pratiquement… … Encyclopédie Universelle
Silicate minerals — The silicate minerals make up the largest and most important class of rock forming minerals, constituting approximately 90 percent of the crust of the Earth. They are classified based on the structure of their silicate group. Silicate minerals… … Wikipedia
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
Silicato (minerales) — Los minerales de silicatos son la clase más grande e importante de minerales que forman rocas, constituyendo cerca del 90 porciento de la corteza terrestre. Los mismos se clasifican según la estructura de su grupo silicato. Todos los minerales de … Wikipedia Español
pyroxene group — noun : a group of silicate minerals closely related in crystal form and having the general formula ABSi2O6 where A represents usually Ca or Na and B is usually Mg, Fe, or Al that includes the orthorhombic species enstatite and hypersthene and… … Useful english dictionary
