591 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-26 13:37:00
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592 | Add to Reading ListSource URL: iis-db.stanford.eduLanguage: English - Date: 2011-01-19 12:04:00
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593 | Add to Reading ListSource URL: tierra.rediris.esLanguage: English - Date: 2003-06-20 18:32:47
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594 | Add to Reading ListSource URL: www.handbookofmineralogy.orgLanguage: English - Date: 2007-09-30 02:51:40
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595 | Add to Reading ListSource URL: www.handbookofmineralogy.orgLanguage: English - Date: 2007-09-30 02:50:44
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596 | Add to Reading ListSource URL: www.chamberofmines.org.naLanguage: English - Date: 2013-03-28 09:35:21
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597 | Add to Reading ListSource URL: www.nwturanium.comLanguage: English - Date: 2007-10-03 12:40:20
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598 | Add to Reading ListSource URL: www.anglogold.comLanguage: English - Date: 2013-09-20 01:31:22
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599 | Add to Reading ListSource URL: www.mining-journal.comLanguage: English - Date: 2010-11-26 06:47:17
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600 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 02:51:40
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