261![](https://www.pdfsearch.io/img/0518eae904a179be7ac1564fd934a97b.jpg) | Add to Reading ListSource URL: www.geo.arizona.eduLanguage: English - Date: 2012-03-15 22:06:17
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262![](https://www.pdfsearch.io/img/a244c1d50f4dd595c16305ac5a30638a.jpg) | Add to Reading ListSource URL: www.cwsd.orgLanguage: English - Date: 2013-01-28 08:16:44
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263![](https://www.pdfsearch.io/img/0b7738daa1bca9a34f720f3be4eed744.jpg) | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 02:57:24
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264![](https://www.pdfsearch.io/img/198c37042e5f24d87b73d6f6c2ae3ac5.jpg) | Add to Reading ListSource URL: www.handbookofmineralogy.comLanguage: English - Date: 2007-09-30 01:38:16
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265![](https://www.pdfsearch.io/img/a0e2a288436c09b10b434a17b7503aa7.jpg) | Add to Reading ListSource URL: ardf.wr.usgs.govLanguage: English - Date: 2012-07-25 12:39:24
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266![Untitled Untitled](https://www.pdfsearch.io/img/738870ce3a5c3bd28ea0dcd6c6a09613.jpg) | Add to Reading ListSource URL: ardf.wr.usgs.govLanguage: English - Date: 2012-07-25 12:39:19
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