21 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-08-18 16:05:09
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22 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2008-03-11 12:37:27
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23 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2006-03-14 16:30:41
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24 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-02-26 14:58:00
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25 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2002-03-12 10:38:54
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26 | Add to Reading ListSource URL: www.fairburn-mining.comLanguage: English - Date: 2009-09-25 01:20:28
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27 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2003-03-03 16:40:10
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28 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-09-18 01:20:35
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29 | Add to Reading ListSource URL: ardf.wr.usgs.govLanguage: English - Date: 2012-07-25 12:39:24
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