11 | Add to Reading ListSource URL: www.rockhoundingar.comLanguage: English - Date: 2017-08-12 21:40:12
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12 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-26 15:12:05
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13 | Add to Reading ListSource URL: minerals.gov.sdLanguage: English - Date: 2017-06-01 01:15:02
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14 | Add to Reading ListSource URL: www.soils.orgLanguage: English - Date: 2016-01-13 03:59:00
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15 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-03 08:53:56
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16 | Add to Reading ListSource URL: www.dttg.ethz.chLanguage: English - Date: 2013-03-08 03:20:05
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17 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2017-09-29 09:07:20
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18 | Add to Reading ListSource URL: mineralsciences.si.eduLanguage: English - Date: 2011-06-29 08:27:09
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19 | Add to Reading ListSource URL: static.acer.comLanguage: English - Date: 2017-04-06 09:50:23
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20 | Add to Reading ListSource URL: mineralsciences.si.eduLanguage: English - Date: 2011-05-26 15:27:23
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