41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-08-01 08:56:44
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 15:16:25
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-08-13 10:28:31
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 14:21:54
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45 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-08-19 09:22:32
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46 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-24 14:53:10
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47 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 13:44:09
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48 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-15 11:49:57
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49 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-06-13 13:55:35
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50 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-06-30 11:19:14
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