21 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-11-30 15:51:31
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22 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-10-20 10:39:56
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23 | Add to Reading ListSource URL: www.blacksmithinstitute.comLanguage: English - Date: 2012-09-16 21:37:18
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24 | Add to Reading ListSource URL: imim.univ-ovidius.roLanguage: English - Date: 2012-07-25 04:20:02
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25 | Add to Reading ListSource URL: rittergroup.orgLanguage: English - Date: 2016-08-16 19:38:42
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26 | Add to Reading ListSource URL: crustal.cr.usgs.govLanguage: English - Date: 2012-01-20 17:04:21
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27 | Add to Reading ListSource URL: www.alchemypottery.comLanguage: English |
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28 | Add to Reading ListSource URL: spontaneousmaterials.comLanguage: English - Date: 2008-01-22 07:43:12
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29 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-12-07 11:20:57
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30 | Add to Reading ListSource URL: www.iags2011.fiLanguage: English - Date: 2011-11-12 02:53:26
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