peridotite

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Английский Язык - Турецкий язык
peridotit
Английский Язык - Английский Язык
A rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle
An igneous rock composed primarily of the iron-magnesium silicate olivine and having a silica content of less than 40%
It also usually contains pyroxene, enstatite, chromite, etc
A mafic igneous rock consisting mainly of the minerals of olivine and pyroxene
{i} variety of igneous rock composed mainly of iron-magnesium silicates
Any of a group of granitoid igneous rocks composed of ferromagnesian minerals, especially olivine
A general term for a coarse-grained igneous rock composed chiefly of the mineral olivine, with or without other magnesium-rich, dark-colored minerals
It is often altered to serpentine
a dark coarse-grained igneous rock consisting principally of olivine
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An eruptive rock characterized by the presence of chrysolite (peridot)
Plutonic igneous rock containing olivine and two pyroxenes, with little or no feldspar
Coarse grained ultramafic igneous rock composed mainly of olivine and pyroxene The mantle is though to be composed primarily of this rock type
Coarse-grained, heavy, igneous rock that contains at least 10% olivine, other iron-and magnesium-rich minerals (generally pyroxenes), and not more than 10% feldspar. Peridotite is the ultimate source of all chromium ore and naturally occurring diamonds, and of nearly all chrysotile asbestos. Nearly all peridotite is more or less altered to serpentine; in warm, humid climates peridotite and serpentine have weathered to soils and related deposits that, though now worked on a relatively small scale, are potential sources of iron, nickel, cobalt, and chromium
A coarsely crystalline, silica poor, igneous rock consisting predominantly of the mineral olivine the Earth's mantle is probably composed largely of peridotite
a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earths mantle