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Pyrite stability relations in the Fe-S system
The reaction pyrite pyrrhotite + liquid (or gas) was investigated up to 5,000 bars by means of a new technique. The univariant equilibrium curve for the reaction originates at an invariant point 743Expand
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The central portion of the Fe-Ni-S system and its bearing on pentlandite exsolution in iron-nickel sulfide ores
A detailed study of the central portion of the Fe-Ni-S system between 600 degrees and 250 degrees C has been conducted by means of silica-tube techniques. Particular emphasis has been placed onExpand
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Thermal stability of pentlandite
The thermal stability of pentlandite was studied by quenching, differential thermal analysis, and high-temperature X-ray diffraction experiments. Rigid silica tubes were employed as reaction vessels,Expand
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Experimental Techniques in Dry Sulfide Research
The chemistry of the common sulfide minerals is relatively simple inasmuch as most of them are composed of only two major elements, while some contain three, and only a few contain four or more.
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Lafayette meteorite: petrology and opaque mineralogy
The Lafayette meteorite is a calcium-rich achondrite composed predominantly of cumulus clinopyroxene (Wo39En39Fs22) with minor iron-rich olivine (Fa66) and rare interstitial feldsparExpand
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The Fe-Pb-S system
The phase relations in the ternary system Fe-Pb-S were determined by quenching and differential thermal analysis experiments in rigid silica-glass tubes. The solubilities of FeS in galena and inExpand
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Crystal and twin structure of digenite, Cu9S5
Digenite undergoes a rapidly reversible and non-quenchable transformation between 60 and 65o c. Digenite was synthesized in octahedra modified by small cube faces. Singlecrystal methods yield a cubicExpand
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