91 | Add to Reading ListSource URL: www.pela.comLanguage: English - Date: 2011-01-13 18:56:05
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92 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2002-04-03 09:43:00
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93 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-03-02 09:04:28
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94 | Add to Reading ListSource URL: www.uky.eduLanguage: English - Date: 2014-02-21 10:50:35
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95 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-11-05 14:59:49
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96 | Add to Reading ListSource URL: www.naic.orgLanguage: English - Date: 2011-08-16 16:23:04
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97 | Add to Reading ListSource URL: www.cusec.orgLanguage: English - Date: 2013-10-29 10:22:40
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98 | Add to Reading ListSource URL: www.tn.govLanguage: English - Date: 2014-06-04 13:36:33
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99 | Add to Reading ListSource URL: www.naic.orgLanguage: English - Date: 2011-08-16 16:23:04
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100 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-10-06 14:17:13
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