251 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-07-18 09:56:55
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252 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-15 07:12:26
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253 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-10-12 13:19:58
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254 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-16 13:58:18
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255 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-03-05 11:21:40
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256 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-21 10:36:45
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257 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-11-01 10:51:18
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258 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-21 10:58:33
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259 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-15 13:51:08
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260 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-31 10:34:14
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