61 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:13:48
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62 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-21 10:33:21
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63 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-19 09:03:28
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64 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 16:50:11
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65 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-04-25 13:54:29
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66 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-03 15:43:12
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67 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-12-12 14:59:42
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68 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-27 19:14:08
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69 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-05-17 08:58:34
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70 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 10:00:09
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