101 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-02-15 10:41:58
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102 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-07-28 09:55:58
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103 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2001-01-17 13:21:36
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104 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1996-07-15 09:29:54
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105 | Add to Reading ListSource URL: resources.rosettastone.comLanguage: English - Date: 2012-06-19 04:45:18
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106 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1996-11-05 15:00:20
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107 | Add to Reading ListSource URL: www.nyc.govLanguage: English - Date: 2013-12-13 14:37:47
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108 | Add to Reading ListSource URL: earthguide.ucsd.eduLanguage: English - Date: 2013-06-24 16:30:57
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109 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2014-04-04 08:25:29
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110 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-02-15 10:42:41
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