771 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 14:19:27
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772 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-01-12 10:45:58
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773 | Add to Reading ListSource URL: www.epo.orgLanguage: English - Date: 2013-07-10 17:04:05
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774 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 11:43:58
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775 | Add to Reading ListSource URL: www.ciel.orgLanguage: English - Date: 2011-11-10 17:09:46
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776 | Add to Reading ListSource URL: www.dvsc.co.ukLanguage: English - Date: 2014-07-24 10:00:42
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777 | Add to Reading ListSource URL: www.thecdi.comLanguage: English - Date: 2007-08-13 10:38:45
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778 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-18 14:14:36
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779 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-02-04 08:45:24
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780 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:55:10
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