21 | Add to Reading ListSource URL: www.tgms.org- Date: 2013-12-30 09:47:42
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22 | Add to Reading ListSource URL: www.tgms.orgLanguage: English - Date: 2014-03-19 01:16:14
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23 | Add to Reading ListSource URL: www.tgms.orgLanguage: English - Date: 2014-07-29 23:31:31
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24 | Add to Reading ListSource URL: www.tgms.orgLanguage: English - Date: 2014-07-29 23:31:31
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25 | Add to Reading ListSource URL: mineralsciences.si.eduLanguage: English - Date: 2012-07-19 09:33:27
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26 | Add to Reading ListSource URL: www.preciousgemstones.comLanguage: English - Date: 2014-04-03 19:41:50
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27 | Add to Reading ListSource URL: www.coloradomineralsociety.orgLanguage: English - Date: 2012-01-04 16:50:44
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28 | Add to Reading ListSource URL: www.coloradomineralsociety.orgLanguage: English - Date: 2014-02-07 15:48:13
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29 | Add to Reading ListSource URL: www.coloradomineralsociety.orgLanguage: English - Date: 2012-02-03 13:53:29
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30 | Add to Reading ListSource URL: www.coloradomineralsociety.orgLanguage: English - Date: 2011-03-01 23:04:55
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