1 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2016-03-02 10:19:17
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2 | Add to Reading ListSource URL: www.cdrecycling.orgLanguage: English - Date: 2013-04-02 11:00:30
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3 | Add to Reading ListSource URL: www.niscair.res.inLanguage: English - Date: 2009-07-27 02:04:19
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4 | Add to Reading ListSource URL: www.hou.usra.eduLanguage: English - Date: 2015-03-04 14:39:22
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5 | Add to Reading ListSource URL: www.tn.govLanguage: English - Date: 2015-01-22 11:22:59
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6 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2012-11-28 10:27:07
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7 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2013-03-17 12:46:55
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8 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2010-11-17 13:33:44
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9 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-12-03 16:17:27
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10 | Add to Reading ListSource URL: www.deq.state.ok.usLanguage: English - Date: 2014-09-26 13:58:34
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