"pyroxene"相关例句(30)
3.a pyroxene mineral consisting of lithium aluminum silicate; a source of lithium.
4.A usually coarse-grained igneous rock composed chiefly of calcic plagioclase and pyroxene.
5.A light green, monoclinic pyroxene mineral, CaMgSi2O6, used as a gemstone and refractory.
6.A green, brown, or black splintery, cleavable pyroxene mineral, essentially(Fe, Mg)2Si2O6.
7.A STUDY ON THE CHEMICAL COMPOSITION OF JADEITE, RELATIVE PYROXENE AND CLASSIFICATION OF JADE
8.Having a texture composed of lath-shaped plagioclase crystals in a matrix of pyroxene crystals.
9.Characteristics and Temperature-Pressure Conditions for Crystallization of Pyroxene in Archean Granulite Facies of Inner Mongolia
10.As magma cools, the first minerals to crystallize are olivine and pyroxene, which are rich in iron and magnesium.
11.A hard, dense, dark volcanic rock composed chiefly of plagioclase, pyroxene, and olivine, and often having a glassy appearance.
13.dark-green to black glassy mineral of the pyroxene group containing large amounts of aluminum and iron and magnesium.
14.A dark-gray to black, fine-textured igneous rock composed mainly of feldspar and pyroxene and used for monuments and as crushed stone.
15.A glassy, usually yellowish gray variety of orthorhombic pyroxene having a magnesium silicate base, mainly MgSiO3, usually found embedded in igneous rocks and meteorites.
16.the commonest type of solidified lava; a dense dark gray fine-grained igneous rock composed chiefly of calcium-rich plagioclase feldspar and pyroxene.
17.Magnesium olivine and pyroxene are silicate minerals formed at high temperatures, and they were found in substantial numbers among the Wild 2 samples.
18.The determinative characteristics of common rock forming minerals containing quartz group, feldspar group, mica group, hornblende group, pyroxene group, olivine group and carbonatite minerals will be discussed in greater detail.
19.The Archaean rocks widely exposed in the area studied belong to the Qian-xi Group of granulite facies, including granulite, charnockite, pyroxene(and/or amphibole)-plagioclase gneiss, amphibolite and so on.
