21 | Add to Reading ListSource URL: www.env.gov.bc.caLanguage: English - Date: 2007-10-03 17:59:16
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22 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-10-13 08:25:37
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23 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-04-04 12:56:14
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24 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 16:56:06
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25 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 16:55:23
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26 | Add to Reading ListSource URL: www.sciencestuff.comLanguage: English - Date: 2013-05-30 11:21:09
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27 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-09-16 10:57:15
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28 | Add to Reading ListSource URL: www.chemmybear.comLanguage: English - Date: 2012-07-13 23:53:35
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29 | Add to Reading ListSource URL: www.bgcryst.comLanguage: English - Date: 2013-11-01 03:11:42
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30 | Add to Reading ListSource URL: www.flowinjection.comLanguage: English - Date: 2014-01-07 22:21:59
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