41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-10-10 09:17:36
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-05-06 06:56:16
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-09-04 07:34:56
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-11-07 09:53:46
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45 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-09-04 14:42:45
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46 | Add to Reading ListSource URL: www.suscondistrict.orgLanguage: English - Date: 2013-06-26 11:00:31
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47 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-08 07:06:14
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48 | Add to Reading ListSource URL: www.conflictfreesmelter.orgLanguage: English - Date: 2013-06-21 17:48:43
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49 | Add to Reading ListSource URL: www.cabot-corp.comLanguage: English - Date: 2002-11-19 08:07:34
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50 | Add to Reading ListSource URL: www.cabot-corp.comLanguage: English - Date: 2003-06-19 01:48:31
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