91 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-02-02 16:20:35
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92 | Add to Reading ListSource URL: mineralogicalassociation.caLanguage: English - Date: 2011-07-12 09:44:26
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93 | Add to Reading ListSource URL: www.turnstone.caLanguage: English - Date: 2010-07-24 12:01:07
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94 | Add to Reading ListSource URL: www.turnstone.caLanguage: English - Date: 2014-02-28 12:02:51
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95 | Add to Reading ListSource URL: www.pi.ingv.itLanguage: English - Date: 2014-06-19 06:40:01
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96 | Add to Reading ListSource URL: www.elementsmagazine.orgLanguage: English - Date: 2011-12-15 17:20:32
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97 | Add to Reading ListSource URL: www.mineralogicalassociation.caLanguage: English - Date: 2011-07-12 09:44:26
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98 | Add to Reading ListSource URL: www.dukelabs.comLanguage: English - Date: 2009-04-13 20:49:42
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99 | Add to Reading ListSource URL: www.dukelabs.comLanguage: English - Date: 2009-04-13 20:32:18
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100 | Add to Reading ListSource URL: www.dukelabs.comLanguage: English - Date: 2010-10-15 12:44:06
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