31 | Add to Reading ListSource URL: www.fpl.fs.fed.usLanguage: English - Date: 2005-07-21 19:40:30
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32 | Add to Reading ListSource URL: publications.gc.caLanguage: English - Date: 2013-10-28 08:52:11
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33 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-04-13 15:52:48
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34 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-05-11 14:34:47
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35 | Add to Reading ListSource URL: www.nmnhs.comLanguage: English - Date: 2010-09-28 06:33:08
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36 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2007-02-12 13:04:32
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37 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2007-02-20 17:02:35
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38 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-07-11 10:23:54
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39 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-03 09:23:30
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40 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-11-07 15:06:06
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