Orbicular Granite

Orbicular Granite

Orbicular granite is an uncommon rock type found near Mount Magnet, in Western Australia. It is a granitic rock with orbicules - concentrically layered, spheroidal structures, probably formed through nucleation around a grain in a cooling magma chamber.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Orbicular granite — Igneous Rock Polished rock sample of orbicular granite from Mount Magnet, Western Australia. Composition …   Wikipedia

  • Granite — For other uses, see Granite (disambiguation). Granite Igneous Rock Granite containing potassium feldspar, plagioclase feldspar, quartz, and biotite and/or amphibole Composi …   Wikipedia

  • Granito orbicular — Orbiculita Granito orbicular cerca de Caldera, Chile.. General Tipo Ígnea Tamaño grano …   Wikipedia Español

  • Caldera, Chile — Infobox Settlement official name = Caldera, Chile other name = native name = nickname = settlement type = motto = imagesize = 300px image caption = Port of Caldera flag size = image seal size = image shield = shield size = image blank emblem =… …   Wikipedia

  • igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

  • Geology of Alderney — Although Alderney is only five kilometers long, it has a geological history spanning half of the life of the earth. Part of the Armorican massif, it has similarities in its rock to the neighbouring Normandy and Guernsey.Geological historyRelics… …   Wikipedia

  • Diorite — classification on QAPF diagram Di …   Wikipedia

  • Nepenthes kerrii — Lower pitchers of Nepenthes kerrii Scientific classification Kingdom: Plantae …   Wikipedia

  • Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category …   Wikipedia

  • Moss agate — pebble, 1 inch (25 mm) long. Montana mo …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”