51 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-12-14 09:29:26
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52 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 09:59:28
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53 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-01-14 10:40:30
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54 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 12:58:45
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55 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:53:58
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56 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-04-19 10:47:02
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57 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:45:15
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58 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-10-25 08:00:26
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59 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-01-31 09:59:42
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60 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-09-17 08:14:03
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