31 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-24 14:55:54
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32 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-12-02 09:18:11
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33 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-05-21 09:55:01
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34 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:04:43
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35 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-01-31 10:10:17
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36 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-05-25 14:16:18
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37 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-02-20 07:02:13
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38 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-06-19 07:55:34
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39 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:02:32
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40 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 13:46:37
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