31 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 11:56:10
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32 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 15:04:04
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33 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-09 16:39:37
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34 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-08-14 13:44:16
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35 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-08-09 17:23:37
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36 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-12-19 11:45:41
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37 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-06-19 09:14:20
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38 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-19 12:40:03
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39 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-30 13:18:10
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40 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-28 07:45:40
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