711 | Add to Reading ListSource URL: www.ecos.orgLanguage: English - Date: 2012-08-24 14:59:24
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712 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-11-16 07:32:00
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713 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-02-04 07:26:34
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714 | Add to Reading ListSource URL: www.epa.state.il.usLanguage: English - Date: 2012-04-26 10:45:42
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715 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:14:03
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716 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:13:46
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717 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-03-14 10:09:01
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718 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-11 07:14:25
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719 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-30 09:48:54
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720 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:53:53
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