Quartzite
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Quartzite (from German Quarzit) is a hard, non-foliated metamorphic rock which was originally sandstone. Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to gray, though quartzites often occur in various shades of pink and red due to varying amounts of iron oxide (Fe2O3). Other colors, such as yellow and orange, are due to other mineral impurities.
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| R. V. Dietrich's GemRocks: Quartzite R. V. Dietrich's GemRocks: Quartzite www.cst.cmich.edu/users/dietr1rv/quartzite.htm - Web |
| CSU Pomona Geology: Quartzite CSU Pomona Geology: Quartzite geology.csupomona.edu/alert/metamorphic/quartzite.htm - Web |
| Cowen's "The First Geologists" (chapter on Stone A... Cowen's "The First Geologists" (chapter on Stone Age/Homo habilis use of quartzite) www.geology.ucdavis.edu/~cowen/~GEL115/115CH1.html - Web |
Gallery for «Quartzite»
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| Minnesota Department of Natural Resources : Natura... Minnesota Department of Natural Resources : Natural History: Minnesota's geology www.dnr.state.mn.us/snas/naturalhistory.html - Web |
| Wisconsin's Baraboo Syncline (map and aerial photo... Wisconsin's Baraboo Syncline (map and aerial photos of Baraboo quartzite quarries) www.geology.wisc.edu/~maher/air/air14.htm - Web |
| South Dakota 2002 Mineral Summary: Production, Exp... South Dakota 2002 Mineral Summary: Production, Exploration and Environmental Issues (including 2002 quartzite production) www.state.sd.us/DENR/DES/Mining/2002stat.pdf - Web |
| Big Sioux River: History of Sioux Falls and Quartz... Big Sioux River: History of Sioux Falls and Quartzite Photos sdww2heroes.tripod.com/zerrphotos/id1.html - Web |
