11 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-02-26 13:36:25
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12 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-04-26 09:25:03
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13 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-06-23 09:05:30
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14 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-03 09:11:01
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15 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-10-25 09:33:56
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16 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-07 10:07:42
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17 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-07-19 13:26:00
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18 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-04-19 13:52:36
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