Mineralogy and Crystallography

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dacite

A Dictionary of Earth Sciences | 1999 | | Copyright

dacite A light-coloured, fine-grained igneous rock containing 63–70 wt.% SiO₂, as well as plagioclase feldspar, alkali feldspar, quartz, biotite, and hornblende as essential minerals, and sphene, apatite, and magnetite as accessory minerals. Plagioclase feldspar dominates over alkali feldspar in a 2:1 ratio. Dacites are the volcanic equivalents of granodiorites and are found as members of the calc-alkaline series, typically developed as eruptive products on the continental side of oceanic-continental plate subduction zones. They are often surprisingly coarse-grained for lavas.

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AILSA ALLABY and MICHAEL ALLABY. "dacite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

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AILSA ALLABY and MICHAEL ALLABY. "dacite." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-dacite.html

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dacite

Oxford Dictionary of Rhymes | 2007 | Copyright

dacite •calcite • campsite •website • dacite • insight •Monophysite • magnesite • eyesight •hindsight • bombsight • foresight •bauxite • quartzite • leucocyte •Hussite • gunsight • phagocyte •marcasite • parasite • anthracite •oversight • worksite •bipartite, multipartite, partite, quadripartite, sexpartite, tripartite •transvestite • airtight • Hittite •magnetite • appetite • stalactite •watertight • Levite • Muscovite •Hepplewhite • bobwhite

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"dacite." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

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"dacite." Oxford Dictionary of Rhymes. 2007. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-dacite.html

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