811 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-04-17 07:40:54
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812 | Add to Reading ListSource URL: www.who.intLanguage: English - Date: 2005-05-06 01:59:29
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813 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 08:37:13
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814 | Add to Reading ListSource URL: www.edu365.catLanguage: English - Date: 2005-03-15 09:05:58
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815 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2009-03-13 03:08:04
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816 | Add to Reading ListSource URL: faculty.rmu.eduLanguage: English - Date: 2012-05-07 08:37:02
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817 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 11:50:10
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818 | Add to Reading ListSource URL: www.tera.orgLanguage: English - Date: 2001-09-28 13:41:03
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819 | Add to Reading ListSource URL: www.jbc.orgLanguage: English |
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820 | Add to Reading ListSource URL: www.inchem.orgLanguage: English - Date: 2005-12-13 12:59:34
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