81 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 14:24:00
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82 | Add to Reading ListSource URL: www.opml.co.ukLanguage: English - Date: 2012-07-19 11:56:01
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83 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-26 13:36:00
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-05-07 15:35:48
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85 | Add to Reading ListSource URL: www.sed.manchester.ac.ukLanguage: English - Date: 2008-08-14 06:09:27
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 14:25:00
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-04-08 17:03:00
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