301 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:19:11
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302 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-02-24 11:18:28
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303 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-02-01 09:08:25
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304 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-09-25 13:52:06
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305 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2008-11-26 10:45:03
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306 | Add to Reading ListSource URL: osp.ua.eduLanguage: English - Date: 2014-04-08 17:43:17
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307 | Add to Reading ListSource URL: haz-map.comLanguage: English - Date: 2014-02-05 13:19:36
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308 | Add to Reading ListSource URL: pubs.ext.vt.eduLanguage: English - Date: 2014-09-04 11:45:13
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309 | Add to Reading ListSource URL: pro-ag.comLanguage: English - Date: 2014-04-24 13:08:48
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310 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-14 12:56:38
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