- sodalite-syenite
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содалитовый сиенит
English-Russian dictionary of geology. 2011.
sodalite-syenite
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Sodalite — Infobox mineral name = Sodalite category = boxwidth = boxbgcolor = caption = Sodalite of 7.5cm formula = Sodium aluminium silicate with chlorine (Na4Al3(SiO4)3Cl) color = Rich royal blue, green, yellow, violet, white veining common habit =… … Wikipedia
syenite — syenitic /suy euh nit ik/, adj. /suy euh nuyt /, n. a granular igneous rock consisting chiefly of orthoclase and oligoclase with hornblende, biotite, or augite. [1790 1800; < L syenites (lapis) (stone) of SYENE < Gk syenítes (líthos); see ITE1] * … Universalium
sodalite — /sohd l uyt /, n. a mineral, sodium aluminum silicate, Na4Al3Si3O12Cl, occurring massive and in crystals, usually blue in color and found in certain alkali rich igneous rocks. [1800 10; SODA + LITE] * * * ▪ mineral feldspathoid mineral, a… … Universalium
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
nepheline syenite — Medium to coarse grained igneous rock, a member of the alkali syenite group, which consists largely of feldspar and nepheline. Nepheline syenite from Canada is used to replace feldspar in the manufacture of ceramic and glass products. * * * ▪… … Universalium
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
Sabinaite — (Na4Zr2TiO4(CO3)4) is a rare carbonate mineral. It crystallizes in the monoclinic crystal system as colorless to white prisms within cavities. It is more typically found as powdery coatings and masses. It has a specific gravity of 3.36.It has… … Wikipedia
naujaite — ˈnau̇yəˌīt noun ( s) Etymology: Naujakasik, Greenland + English ite : a nephelite sodalite syenite rock having a poikilitic texture … Useful english dictionary
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
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
Feldspathoid — The feldspathoids are a group of tectosilicate minerals which resemble feldspars but have a different structure and much lower silica content. They occur in rare and unusual types of igneous rocks.Foid, contraction of the term feldspathoid, is… … Wikipedia
