11 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-07 06:41:38
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12 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 13:59:22
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13 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-17 09:55:25
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14 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-03-01 13:30:12
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15 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-08 13:01:48
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16 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-06-17 15:13:00
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17 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-05-07 15:35:48
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18 | Add to Reading ListSource URL: www.mining-journal.comLanguage: English - Date: 2010-11-26 06:47:17
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19 | Add to Reading ListSource URL: www.perilya.com.auLanguage: English - Date: 2006-12-05 04:49:05
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20 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-02-07 17:29:40
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