31 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-10-31 07:16:54
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32 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-07-17 06:50:44
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33 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 15:42:02
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34 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 00:11:58
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35 | Add to Reading ListSource URL: www.handbookofmineralogy.orgLanguage: English - Date: 2007-09-30 01:53:14
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36 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 02:59:42
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37 | Add to Reading ListSource URL: www.ctre.iastate.eduLanguage: English - Date: 2000-10-20 11:32:36
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38 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-08-04 22:30:17
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39 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2006-12-13 13:35:47
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40 | Add to Reading ListSource URL: www.minsocam.orgLanguage: English - Date: 2007-03-05 08:07:50
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