- syenite-pegmatite
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сиенито-пегматит
English-Russian dictionary of geology. 2011.
syenite-pegmatite
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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
Litchfieldite — is a rare metamorphosed igneous rock. It is a variety of nepheline syenite and is composed of two near pure phases of feldspar, albite and microcline, with predominance of the first one, plus nepheline, sodalite, cancrinite and calcite. The mafic … Wikipedia
Villiaumite — is a mineral composed of sodium fluoride, NaF. It is soluble in water and some specimens fluoresce under long and short wave ultraviolet light. It has a mohs hardness of 2.5 and is usually red, pink, or orange in color. It occurs in nepheline… … Wikipedia
Nenadkevichite — is a rare silicate mineral containing niobium with formula: (Na,Ca)(Nb,Ti)Si2O7·2H2O. It forms brown to yellow to rose colored orthorhombic dipyramidal crystals with a dull to earthy luster. It has a Mohs hardness of 5 and a specific gravity of 2 … Wikipedia
Siderophyllite — Infobox mineral name = Siderophyllite category = Silicate mineral boxwidth = boxbgcolor = imagesize = caption = formula = KFe++Al(Al2Si2)O10(F,OH)2 molweight = color = Blue green, dark brown, black. habit = Micaceous foliated system = Monoclinic… … Wikipedia
Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… … Wikipedia
Jacques Thoreau — (27 septembre 1886 à Bruxelles 11 janvier 1973) fut professeur de minéralogie à l Université catholique de Louvain (UCL). Sommaire 1 Biographie 2 Distinctions honorifiques … Wikipédia en Français
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
Leifite — Catégorie IX : silicates[1] Leifite, Carrière la Poudrette, Mont Saint Hilaire, 4.4 x 4.3 x 4 cm … Wikipédia en Français
List of rock types — This page is intended as a list of all rock types. NOTOC A : Amphibolite: Andesite: Anorthosite : Anthracite: Aplite: Argillite: Arkose B : Banded iron formation: Basalt: Basanite: Blueschist: Boninite: Breccia C : Carbonatite: Cataclasite: Chalk … Wikipedia
Roche plutonique — granite : gabbro : syénite … Wikipédia en Français
