C. G. Warren
1968
<p>Ferroselite<span>, FeSe </span><sub>2</sub><span>, is commonly associated with sandstone-type uranium deposits. Although it has been previously synthesized, the conditions of </span>synthesis<span> were not applicable to the natural system, and the literature did not provide any information on the formation of natural </span>ferroselite<span>. The U. S. Geological Survey's Ambrosia Lake study, however, was concerned with the formation of </span>ferroselite<span> under more natural conditions. Thus, in this work, the </span>synthesis<span> of </span>ferroselite<span> was restricted to conditions more nearly approaching the conditions of the formation of sandstone-type uranium deposits-a </span>low<span> </span>temperature<span> and an </span>aqueous<span> environment. A </span>solution<span> of sodium seleno-sulfate, Na </span><sub>2</sub><span>SSeO </span><sub>3</sub><span>, stood in contact with freshly precipitated iron sulfide, FeS, for 10 days under an inert atmosphere </span>at<span> 80° C. The final product was identified by its diffraction pattern and consisted of FeSe </span><sub>2</sub><span> mixed with about 10 percent FeS.</span></p>
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10.2113/gsecongeo.63.4.418
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Society of Economic Geologists
The synthesis of ferroselite from an aqueous solution at low temperature
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