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USGS CMG InfoBank Geology School: aphanitic

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Title Comment Keywords
Textures and Conditions 06:48 - 07:53 (01:05) / 1.6 MB "J. Lawford Anderson", crystal, phaneritic, granite, aphanitic, obsidian
Geology School Keywords
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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/aphaniticl_tra.html
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Page Last Modified: Tue Feb 5 05:12:50 PST 2013  (chd)