81 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:03:19
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82 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-06-03 14:48:54
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83 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 12:11:47
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-02-08 16:26:55
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-29 13:30:55
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-03-26 09:32:41
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-20 13:39:25
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-03-13 11:13:54
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-02-05 08:57:22
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-20 09:41:38
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