101 | Add to Reading ListSource URL: www.itia.infoLanguage: English - Date: 2014-05-17 10:43:52
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102 | Add to Reading ListSource URL: www.epo.orgLanguage: English - Date: 2011-06-14 11:51:36
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103 | Add to Reading ListSource URL: www.itia.infoLanguage: English - Date: 2014-02-07 05:47:37
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104 | Add to Reading ListSource URL: www.thecdi.comLanguage: English - Date: 2010-04-01 03:39:03
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105 | Add to Reading ListSource URL: www.thecdi.comLanguage: English - Date: 2007-08-13 10:36:27
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106 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-30 16:26:47
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107 | Add to Reading ListSource URL: www.iowadot.govLanguage: English - Date: 2009-07-30 15:41:51
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108 | Add to Reading ListSource URL: www.inchem.orgLanguage: English - Date: 2008-04-02 09:35:37
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109 | Add to Reading ListSource URL: www.inchem.orgLanguage: English - Date: 2006-12-14 14:19:29
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110 | Add to Reading ListSource URL: 216.92.238.244Language: English - Date: 2010-01-08 16:35:29
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