71 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-09-26 07:32:21
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72 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-10-16 18:18:01
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73 | Add to Reading ListSource URL: www.minerals.org.auLanguage: English - Date: 2013-05-30 01:09:22
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74 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1999-05-06 14:34:02
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75 | Add to Reading ListSource URL: www.nrm.seLanguage: English - Date: 2014-02-03 05:06:29
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76 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:02
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77 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:08
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78 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:08
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79 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:02
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80 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2010-01-21 16:22:21
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