21 | Add to Reading ListSource URL: www.crystaltechno.comLanguage: English - Date: 2013-08-29 01:03:23
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22 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 13:38:50
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23 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:56:41
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24 | Add to Reading ListSource URL: www.ltschem.comLanguage: English - Date: 2012-07-09 15:52:47
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25 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 14:25:43
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26 | Add to Reading ListSource URL: www.handbookofmineralogy.orgLanguage: English - Date: 2007-09-30 00:42:12
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27 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 01:25:32
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28 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2004-06-10 07:40:29
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29 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 01:14:50
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30 | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 00:42:12
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