quartz-diorite


quartz-diorite
A coarse-grained holo-crystalline igneous rock of intermediate composition, composed of quartz, plagioclase feldspar, hornblende and biotite, and thus intermediate in mineral composition between typical diorite and granite.

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  • Quartz diorite — is an igneous, plutonic (intrusive) rock, of felsic composition, with phaneritic texture. Feldspar is present as plagioclase (typically oligoclase or andesine) with 10% or less potassium feldspar. Quartz is present at between 5 to 20% of the rock …   Wikipedia

  • quartz-diorite — noun any form of diorite containing appreciable amounts of quartz …   Wiktionary

  • quartz-diorite — ˈ ̷ ̷ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun : diorite containing appreciable amounts of quartz …   Useful english dictionary

  • Diorite — classification on QAPF diagram Di …   Wikipedia

  • diorite — [ djɔrit ] n. f. • 1817; du gr. diorizein « distinguer » ♦ Géol. Roche éruptive grenue, formée de cristaux de feldspath (couleur blanche) et d amphibole (couleur verte). ● diorite nom féminin (grec dioridzein, distinguer) Roche plutonique… …   Encyclopédie Universelle

  • quartz — [ kwarts ] n. m. • 1749; all. Quarz ♦ Forme cristalline commune de la silice (SiO2), appelée à l état pur cristal de roche; élément constitutif fréquent des roches cristallines (granites, rhyolithes, etc.), de certaines roches sédimentaires… …   Encyclopédie Universelle

  • Quartz monzonite — Igneous Rock Quartz monzonite bedrock from a UGSG drill core at Western Cape Cod, Massachusetts Quartz monzonite (or adamellite) is an intrusive igneous rock that has an approximately equal proportion of orthoclase and …   Wikipedia

  • quartz-di|o|rite — «KWAWRTS DY uh ryt», noun. a variety of diorite having quartz as one of its main components …   Useful english dictionary

  • Diorite — Hache polie en diorite néolithique – Environs de Reims (Marnes) France – Collection d’Alexis Damour – Muséum de Toulouse PRE.2009.0.215.1 (250x52x33mm) La diorite est une roche magmatique plutonique grenue composée de plagioclase, d amphibole …   Wikipédia en Français

  • diorite — n. a coarse grained plutonic igneous rock containing quartz. Derivatives: dioritic adj. Etymology: F f. Gk diorizo distinguish …   Useful english dictionary