81 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:33:47
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82 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-22 10:47:51
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83 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-07-22 13:26:31
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-11-12 14:57:42
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-29 12:50:53
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-06-27 16:55:47
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:02:43
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-16 14:29:40
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-06-27 10:16:54
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-18 14:42:21
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