271 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-08-11 12:58:18
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272 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-03-04 15:42:59
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273 | Add to Reading ListSource URL: files.dnr.state.mn.usLanguage: English - Date: 2004-12-18 08:31:22
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274 | Add to Reading ListSource URL: files.dnr.state.mn.usLanguage: English - Date: 2014-05-22 16:35:41
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275 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-04-16 13:28:58
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276 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-02-15 10:40:51
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277 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-05-22 13:51:44
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278 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-06-17 15:39:44
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279 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-01-09 06:13:36
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280 | Add to Reading ListSource URL: files.dnr.state.mn.usLanguage: English - Date: 2004-12-18 08:54:18
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