101 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-16 14:19:37
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102 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 14:36:55
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103 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 12:00:20
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104 | Add to Reading ListSource URL: www.bowdoin.eduLanguage: English - Date: 2014-08-27 16:22:42
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105 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:07
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106 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-02-19 13:28:48
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107 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:56:37
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108 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 11:53:44
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109 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-09-16 09:51:26
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110 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-13 13:59:51
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