481 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-10 10:19:00
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482 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-24 17:52:24
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483 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-11-21 17:34:30
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484 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-01 15:35:46
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485 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-30 18:06:40
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486 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 15:09:16
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487 | Add to Reading ListSource URL: bruceames.orgLanguage: English - Date: 2014-07-03 14:56:17
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488 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-04-28 17:50:23
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489 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 08:32:18
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490 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-11-26 12:03:45
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