41 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2004-03-29 16:19:06
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42 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2012-01-24 14:17:49
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43 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2007-01-19 09:02:46
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44 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2003-02-11 12:09:48
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45 | Add to Reading ListSource URL: ifcs2014.orgLanguage: English - Date: 2014-05-16 20:01:39
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46 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2009-02-02 08:26:45
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47 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 16:37:23
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48 | Add to Reading ListSource URL: www.ndk.comLanguage: English - Date: 2013-09-02 22:18:49
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49 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 13:25:34
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50 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 11:24:40
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