101 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-28 13:42:07
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102 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-02-02 14:21:43
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103 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-07 07:45:18
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104 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-10-23 07:10:27
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105 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2011-06-27 10:01:14
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106 | Add to Reading ListSource URL: www.minsocam.orgLanguage: English - Date: 2011-09-15 10:13:44
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107 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2011-09-27 14:55:18
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108 | Add to Reading ListSource URL: www.nr.gov.nl.caLanguage: English - Date: 2013-11-20 13:05:27
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109 | Add to Reading ListSource URL: www.arizonahistoricalsociety.orgLanguage: English - Date: 2012-08-09 08:01:34
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110 | Add to Reading ListSource URL: www.canadafluorspar.comLanguage: English - Date: 2013-08-10 12:13:25
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