311 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-12-14 14:51:44
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312 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 14:07:35
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313 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-02-24 10:58:25
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314 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 12:22:07
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315 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 11:18:26
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316 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-14 15:31:31
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317 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-23 12:08:39
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318 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-29 16:12:04
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319 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-19 08:57:06
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320 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-16 12:52:10
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