41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-03 09:33:06
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-09-07 09:27:59
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-11-21 08:52:44
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-11-13 12:06:24
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45 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-07-17 13:55:00
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46 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-08-25 11:01:13
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47 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-05 08:25:50
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48 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-03-21 09:16:50
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49 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-10-03 13:21:28
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50 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-01-31 09:51:15
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