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aplite |
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apliteor hapliteAny igneous rock of simple composition, such as granite composed only of alkali feldspar, muscovite mica, and quartz; in a more restricted sense, uniformly fine-grained (less than 0.08 in., or 2 mm), light-coloured igneous rocks that have a characteristic granular texture. Unlike pegmatite, which is similar but much coarser-grained, aplite occurs in small bodies that rarely contain zones of different minerals. The two rocks may occur together and are assumed to have formed at the same time from similar magmas. aplite [′a‚plīt] (petrology) Fine-grained granitic dike rock made up of light-colored mineral constituents, mostly quartz and feldspar; used to manufacture glass and enamel. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The mineralization is associated with quartz-tourmaline veins and aplite dykes that intrude mafic metavolcanic rocks of the Yukon-Tanana Terrane. Silica Company, is a leading supplier of high quality silica sand and aplite for the glass, foundry, chemical, recreational and construction industries, and fine ground silica and kaolin clay products for the paint, plastic and ceramic industries. Spodumene-Quartz-Feldspar (SQF) Spodumene-Quartz-Feldspar-Lepidolite (SQFL) Quartz-Albite & Aplite (QA + A) Quartz-Feldspar-Lepidolite (QFL) Quartz-Silver Mica (QM). |
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