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Satterlyite
Satterlyite is a hydroxyl bearing iron phosphate mineral. The mineral can be found in phosphatic shales and was first discovered in the Big Fish River area in Yukon Territory, Canada.
Satterlyite is part of the phosphate mineral group. Satterlyite is a transparent, light brown to light yellow mineral with a density of 3.68 g/cm3. The structure of satterlyite is made up of two pairs of face shared, distorted (Fe,Mg)O6 octahedra, linked together by sharing edges to form double chains along the () plain.
The first satterlyite mineral was discovered in the Big Fish River area in Yukon Territory, westernmost of Canada; by a geologist at Ontario Department of Mines in Canada, Jack Satterly, and the mineral was also name after him (Kolitsch, 2002).
==Composition==
Satterlyite has a formula of (Fe2+,Mg,Fe3+)2(PO4)(OH). Studies using the optical absorption spectra show that satterlyite has similar features to different iron bearing minerals with Fe(III) and Fe(II) impurities. EPR studies were also made on the mineral first by turning the satterlyite mineral fine powder then putting it into an EPR quartz tube for measurements. The results from the EPR show a strong line on g=2.0 and another line on g=8.0, thus also showing a presence of ferrous and ferric ions in satterlyite.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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