minette
minette A type of lamprophyre, characterized by essential biotite and orthoclase feldspar (see ESSENTIAL MINERAL). If augite is present the rock is termed an ‘augite-minette’.
More From encyclopedia.com
essential , es·sen·tial / iˈsenshəl/ • adj. 1. absolutely necessary; extremely important: it is essential to keep up-to-date records. ∎ fundamental or central to… Norite , norite A coarse-grained, basic igneous rock consisting of essential plagioclase feldspar, orthopyroxene (hypersthene or bronzite), and clinopyroxene… Arenaceous , arenaceous Sandy, or sand-like in appearance or texture. The term is applied to clastic sedimentary rocks with a grain size of 0.0625–2.00 mm. Three… Syenite , syenite A saturated, coarse-grained, igneous rock consisting of essential alkali feldspar and ferromagnesian minerals (biotite, hornblende, arfvedson… diabase , dolerite (diabase, microgabbro) A dark-coloured, medium-grained igneous rock which contains plagioclase feldspar of labradorite composition and pyrox… Iron Ores , Rocks
Rocks are composed of minerals, which are natural inorganic (nonliving) substances with specific chemical compositions and structures. A rock m…
You Might Also Like
NEARBY TERMS
minette