21 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-04-03 09:47:16
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22 | Add to Reading ListSource URL: csmres.jmu.eduLanguage: English - Date: 2000-09-25 10:25:02
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23 | Add to Reading ListSource URL: crcleme.org.auLanguage: English - Date: 2009-01-14 01:27:01
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24 | Add to Reading ListSource URL: www.baader-planetarium.comLanguage: English - Date: 2013-06-12 06:22:53
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25 | Add to Reading ListSource URL: people.bath.ac.ukLanguage: English - Date: 2013-02-18 11:43:18
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26 | Add to Reading ListSource URL: www.yorksgeolsoc.org.ukLanguage: English - Date: 2014-01-16 19:04:57
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27 | Add to Reading ListSource URL: www.crcleme.org.auLanguage: English - Date: 2009-01-14 01:27:01
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28 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-02-05 07:21:35
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29 | Add to Reading ListSource URL: www.earthlearningidea.comLanguage: English - Date: 2014-11-17 06:11:36
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30 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-02-02 15:02:29
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