201 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-03-14 14:50:34
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202 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-15 13:56:29
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203 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:05
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204 | Add to Reading ListSource URL: www.arb.ca.govLanguage: English - Date: 2010-03-23 13:18:23
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205 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-10-12 13:19:58
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206 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-16 13:58:18
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207 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-31 10:27:55
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208 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2014-08-05 13:19:10
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209 | Add to Reading ListSource URL: www.deswater.comLanguage: English - Date: 2014-07-19 11:07:35
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210 | Add to Reading ListSource URL: media.abnnewswire.netLanguage: English - Date: 2014-07-02 19:16:10
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