11 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 17:15:24
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12 | Add to Reading ListSource URL: www.anconline.comLanguage: English - Date: 2012-11-05 14:00:08
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13 | Add to Reading ListSource URL: www.anconline.comLanguage: English - Date: 2014-05-15 19:50:59
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14 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-09-20 09:45:25
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15 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-15 14:37:42
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16 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-19 09:39:24
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17 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-02-01 10:47:56
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