81 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 14:57:08
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82 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 14:50:14
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83 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-06-26 12:07:31
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-08-25 11:07:05
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-10-12 07:55:39
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-10 08:48:37
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-01-31 09:52:54
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:50:04
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:34:10
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-02-02 14:15:03
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