91 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 08:58:05
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92 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 10:53:44
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93 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 13:41:33
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94 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2012-09-04 15:38:39
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95 | Add to Reading ListSource URL: www.culturalequity.orgLanguage: English - Date: 2013-12-05 11:10:46
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96 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2013-11-12 09:51:55
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97 | Add to Reading ListSource URL: docs.house.govLanguage: English - Date: 2014-06-10 12:10:04
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98 | Add to Reading ListSource URL: www.geog.ucsb.eduLanguage: English - Date: 2002-05-28 16:37:18
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99 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-08-15 16:52:52
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100 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-04-16 06:44:08
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