81 | Add to Reading ListSource URL: www.cdc.govLanguage: English - Date: 2009-10-19 09:46:22
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82 | Add to Reading ListSource URL: americanberyllia.comLanguage: English - Date: 2012-05-17 12:59:04
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83 | Add to Reading ListSource URL: www.atsdr.cdc.govLanguage: English - Date: 2011-08-11 10:22:11
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 09:03:50
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-10-28 12:48:46
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86 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-01-29 14:26:44
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-06-19 07:54:16
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 11:26:47
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 08:32:03
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-08-14 15:49:46
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