71 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2005-06-16 14:33:47
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72 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2015-03-26 09:27:34
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73 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-02-15 10:40:07
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74 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2015-04-29 16:28:51
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75 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2013-05-10 15:11:39
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76 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2012-07-16 10:04:57
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77 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2002-12-17 12:15:00
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78 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1996-07-15 09:29:50
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79 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2012-12-17 15:54:17
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80 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-10-06 13:00:39
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