71 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:07:42
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72 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-19 09:28:07
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73 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-12 16:39:09
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74 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-07-23 09:37:47
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75 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-05-09 13:44:36
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76 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:06:41
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77 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-01-21 09:24:14
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78 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:03:34
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79 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-02-05 07:49:27
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80 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-08 12:22:14
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