21 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-06-19 13:52:01
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22 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:56:20
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23 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 11:10:50
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24 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-05-07 07:13:46
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25 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:26:18
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26 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-21 07:22:25
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27 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-01-12 10:48:21
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28 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 15:06:36
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29 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 15:16:25
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30 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 14:21:54
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