You are seeing reference results for plagioclase rock because there's not a match on Dictionary.com.
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www.directhit.com/ansres/Dark-Rock.html
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What rocks contain dark silicate minerals and plagioclase feldspar? ... What is a dark colored rock that is rich in iron and magnesium?
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answers.askkids.com/Nature/what_minerals_are_in_granite
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The minerals that are contained in granite are potassium, quartz and plagioclase feldspars. It is characterized as being a igneous rock made ... view more. ... Is granite an acidic igneous rock,
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answers.askkids.com/Weird_Science/what_is_basalt
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Basalt is a volcanic rock. It is hard and dense. The composition of basalt is mostly plagioclase, pyroxene and olivine. Basalt has a glas ... view more. ... Basalt is a common volcanic rock.
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Plagioclase - Wikipedia, the free encyclopedia
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en.wikipedia.org/wiki/Plagioclase
It is named after Labrador, where it is a constituent of the intrusive igneous rock anorthosite which is composed almost entirely of plagioclase. A variety of ...
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Feldspar - Wikipedia, the free encyclopedia
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en.wikipedia.org/wiki/Feldspar
Rock formed almost entirely of calcic plagioclase feldspar (see below) is known as anorthosite. Feldspars are also found in many types of sedimentary rock.
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www.minsocam.org/ammin/AM45/AM45_1020.pdf
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combined with the cobaltinitrite staining of K-feldspar to stain K-feldspar yellow and plagioclase red on polished rock surfaces and uncovered thin sections.
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wiki.answers.com/Q/What_type_of_rock_is_a_plagioclase
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Most hard rock was constructed by slow solidification of magma but some metamorphosed sedimentary and igneous rocks can also be considered to be ' hard ...
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dl.acm.org/citation.cfm?id=1225121
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Image analysis of plagioclase crystals in rock thin sections using grey level homogeneity recognition of discrete, 2007 Article. Bibliometrics Data Bibliometrics ...
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geology.about.com/od/minerals/a/aboutfeldspar.htm
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An unusual igneous rock consisting of only plagioclase is called anorthosite. A noteworthy occurrence is in New York's Adirondack Mountains; another one is ...
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