991 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-08-28 12:31:54
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992 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 13:40:28
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993 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 14:20:33
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994 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 13:36:27
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995 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-01-12 10:24:25
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996 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-06-08 10:53:10
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997 | Add to Reading ListSource URL: www.seattle.govLanguage: English - Date: 2012-07-07 19:50:11
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998 | Add to Reading ListSource URL: www.usc.eduLanguage: English - Date: 2014-04-25 17:11:26
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999 | Add to Reading ListSource URL: www.irvingoilcommercial.comLanguage: English - Date: 2013-05-06 10:19:30
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1000 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-24 10:45:02
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