1 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-11-13 07:51:05
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2 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-11-13 07:51:00
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3 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-11-13 07:51:00
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4 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-11-13 07:51:05
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