41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2016-04-20 09:12:49
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42 | Add to Reading ListSource URL: rittergroup.orgLanguage: English - Date: 2016-08-16 19:38:59
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43 | Add to Reading ListSource URL: www.randrefinery.comLanguage: English - Date: 2015-09-29 05:43:27
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-12-04 15:04:10
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45 | Add to Reading ListSource URL: rittergroup.orgLanguage: English - Date: 2016-08-16 19:38:16
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46 | Add to Reading ListSource URL: rittergroup.orgLanguage: English - Date: 2016-08-16 19:38:32
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47 | Add to Reading ListSource URL: faculty.ucr.eduLanguage: English - Date: 2007-01-11 20:56:01
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48 | Add to Reading ListSource URL: chemie.univie.ac.atLanguage: English - Date: 2016-03-16 08:57:17
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49 | Add to Reading ListSource URL: rittergroup.orgLanguage: English - Date: 2016-08-16 19:38:19
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50 | Add to Reading ListSource URL: www.infinite-energy.comLanguage: English - Date: 2014-07-09 14:13:44
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