An international research team has found that black eye makeup used between the 9th and 7th centuries BCE in the northwest of today's Iran contained natural graphite and manganese oxide—unlike the ...

A simple dust grain brought back from asteroid Ryugu is shaking up certain certainties. A rare mineral, djerfisherite, was ...

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The reaction of colorless iron(II) formate or the mixed-valence cluster Fe3O(MeCOO)6(H2O)3 with formic acid in dimethylformamide exposed to air at 110 °C affords black crystals of the mixed-valence ...

The synthesis and crystallographic characterization of the five-coordinate iron(III) porphyrinate complex [Fe(OEP)(NO)]ClO4 are reported. This {FeNO}6 complex has a nearly linear Fe−N−O group (angle = ...