361 | Add to Reading ListSource URL: crustal.usgs.govLanguage: English - Date: 2012-01-20 18:30:00
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362 | Add to Reading ListSource URL: minerals.cr.usgs.govLanguage: English - Date: 2007-01-03 20:54:17
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363 | Add to Reading ListSource URL: www.consrv.ca.govLanguage: English - Date: 2013-10-28 14:20:43
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364 | Add to Reading ListSource URL: www.arb.ca.govLanguage: English - Date: 2006-06-27 15:42:19
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365 | Add to Reading ListSource URL: www.nasonline.orgLanguage: English - Date: 2014-06-20 11:09:20
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366 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2011-09-27 16:00:32
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367 | Add to Reading ListSource URL: www.michigan.govLanguage: English - Date: 2013-07-31 11:49:34
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368 | Add to Reading ListSource URL: cngo.caLanguage: English - Date: 2013-01-30 13:41:24
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369 | Add to Reading ListSource URL: cngo.caLanguage: English - Date: 2014-01-26 19:27:47
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370 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2012-08-07 13:53:06
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