81 | Add to Reading ListSource URL: sofsurfaces.comLanguage: English - Date: 2013-04-17 21:48:47
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82 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2006-07-26 08:55:40
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83 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2013-07-01 14:27:55
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84 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2007-09-06 09:16:43
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85 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-07-28 09:55:16
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86 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-11-27 14:21:44
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87 | Add to Reading ListSource URL: lca-forum.orgLanguage: English - Date: 2011-03-28 22:12:03
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88 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-07-08 08:32:37
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89 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-02-15 10:38:55
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90 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2003-01-21 14:07:52
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