81 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 17:05:12
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82 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 17:04:34
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83 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 17:05:00
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-02-04 07:29:53
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-09-02 09:18:24
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-03-12 10:35:23
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-09-04 14:57:01
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 08:58:33
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-21 10:48:15
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 10:54:34
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