41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-01-14 10:43:34
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-11-07 09:29:40
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-09-27 14:59:33
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-19 13:33:17
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45 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-10-01 11:15:23
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46 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:06:51
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47 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:32:41
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48 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 13:51:17
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49 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:05:48
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50 | Add to Reading ListSource URL: www.anderson.ucla.eduLanguage: English - Date: 2010-06-16 18:18:56
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