61 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-02-28 13:44:19
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62 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-08-20 09:40:25
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63 | Add to Reading ListSource URL: www.ncbi.nlm.nih.govLanguage: English |
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64 | Add to Reading ListSource URL: bk-giulini-pcg.comLanguage: English - Date: 2010-02-27 14:35:05
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65 | Add to Reading ListSource URL: www.1796kotok.comLanguage: English - Date: 2013-05-01 14:40:48
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66 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2005-09-07 16:37:24
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67 | Add to Reading ListSource URL: www.scs.illinois.eduLanguage: English - Date: 2011-10-31 20:15:03
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68 | Add to Reading ListSource URL: www.clays.orgLanguage: English - Date: 2009-03-23 17:44:09
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69 | Add to Reading ListSource URL: www1.eere.energy.govLanguage: English - Date: 2008-06-26 16:06:45
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70 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 00:29:58
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