421 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-03-07 16:50:26
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422 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-03-26 14:15:48
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423 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-09-11 11:16:52
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424 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-11-01 04:15:10
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425 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-06 07:13:18
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426 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-03-08 13:00:43
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427 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-07-10 08:06:02
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428 | Add to Reading ListSource URL: content.govdelivery.comLanguage: English - Date: 2012-07-11 08:30:10
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429 | Add to Reading ListSource URL: content.govdelivery.comLanguage: English - Date: 2012-09-11 08:30:04
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430 | Add to Reading ListSource URL: content.govdelivery.comLanguage: English - Date: 2012-10-11 08:30:33
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