81 | Add to Reading ListSource URL: insights.mastercard.comLanguage: English - Date: 2014-05-01 14:24:54
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82 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-04-26 16:44:56
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83 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-09-17 08:11:31
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84 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 12:34:27
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85 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:11:42
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86 | Add to Reading ListSource URL: insights.mastercard.comLanguage: Spanish - Date: 2014-05-01 14:24:54
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-08-31 11:11:56
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88 | Add to Reading ListSource URL: insights.mastercard.comLanguage: English - Date: 2014-05-01 14:24:54
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89 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2014-04-24 11:19:24
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-11-09 11:17:22
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