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Isocubanite: CuFe2S3 Isochalcopyrite: Cu8Fe9S16
Comments: SEM image of an aggregate of idiomorphic grains of isocubanite (formerly known as isochalcopyrite) associated with minor pyrite. Location: Submarine sulphide deposits of the East Pacific Rise (EPR) and the Red Sea. Scale: See Image. © Mineralogical Magazine
Comments: Polished section showing isocubanite (formerly isochalcopyrite) with exsolved chalcopyrite infilling and replacing cross-bedded turbiditic hydrothermally altered sandstone. Location: Unit VI, Deep Copper Zone, Bent Hill Massive Sulfide Deposit, Middle Valley, Northern Juan de Fuca Ridge. Scale: See Image. © National Resouces of Canada