Answer | Crossword Clue |
---|---|
pyrrhotite | A reddish-bronze mineral consisting of iron sulfide, typically forming massive or granular deposits |
marcasites | A bronze-yellow mineral consisting of iron disulfide but differing from pyrite in typically forming aggregates of tabular crystals |
marcasite | A bronze-yellow mineral consisting of iron disulfide but differing from pyrite in typically forming aggregates of tabular crystals |