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An igneous rock composed primarily of alkali feldspar together with other minerals, such as hornblende. from The American Heritage Dictionary of the English Language, 4th EditionAn igneous rock composed chiefly of feldspar. from Free Scrabble Dictionary...
A variety of minerals contribute to the composition of lava rocks. The most common minerals are pyroxine, olivine, amphibole and plagioclase feldspar, although low quantities of hornblende, biotite mica, magnetite and quartz are occasionally present. Gabbro, a mafic intrusive igneous rock which soli...
a女孩得救了 The girl has been saved [translate] aHornblende Schist 普通角闪石片岩 [translate] a我将告诉他这个消息 正在翻译,请等待... [translate] adarkwarlock darkwarlock [translate] aPynk radio station is undergoing some changes and so from today onwards i will no longer be working as a...
aophiolitic rock consists of hornblende gabbro with ophiolitic岩石包括普通角闪石飞白岩与[translate] aArrange windows as non-overlapping tiles 安排窗口作为非重复瓦片[translate] a有一些男和女同学在 Has some male and female schoolmate in[translate] ...
What is a Phenocrysts in geology? A relatively large crystal embedded in a finer-grained or glassy igneous rock. The presence of phenocrysts gives the rock a porphyritic texture (see illustration). Phenocrysts are represented most commonly by feldspar, quartz, biotite, hornblende, pyroxene and ...
Mafic fragmental dykes in the same area are termed 'fluidisation breccias'; they contain abundant, very well-rounded fragments, sorted according to size, among which hornblendites predominate, the analysed hornblende being a pargasite-ferrohastingsite. Other fragments include abundant ijolites, and...
Is convite a word? convite:invitation. What does Covite mean? [′kō‚vīt] (petrology)A rock of igneous origincomposed of sodic orthoclase, hornblende, sodic pyroxene, nepheline, and accessory sphene, apatite, and opaque oxides. What does covet thy Neighbour mean?
generally give granite a light color, ranging from pinkish to white. That light background color is punctuated by the darker accessory minerals. Thus, classic granite has a "salt-and-pepper" look. The most common accessory minerals are the black micabiotiteand the black amphibolehornblende. ...
Mineral index: Ol e olivine; Srp e serpentine; Cpx e clinopyroxene; Hol e hornblende; Bt e biotite; Pl e plagioclase; Kfs e potassium feldspar; Qz e quartz; Ms e muscovite; Ser e sericite. Institute of Geology and Geophysics, Chinese Academy of Sciences and by a Philips PW2404 X-ray...