171 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2006-03-23 14:37:54
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172 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 10:33:38
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173 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:01:54
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174 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:01:37
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175 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-06-18 11:36:25
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176 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-05-26 12:13:49
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177 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:49:47
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178 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-05-26 12:13:51
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179 | Add to Reading ListSource URL: www.glifwc.orgLanguage: English - Date: 2012-06-29 13:40:06
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180 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:55:44
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