31 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:17:55
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32 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-02-26 13:36:25
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33 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-04-26 09:25:03
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34 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-06-23 09:05:30
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35 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-03 09:11:01
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36 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-10-25 09:33:56
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37 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 14:08:13
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38 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 09:55:24
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39 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 11:26:47
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40 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 08:32:03
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