a deep red to black silver ore
Crossword Clue

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AnswerCrossword Clue
pyrargyritea deep-red to black silver ore
pyrargyritesPYRARGYRITE, a deep-red to black silver ore
zincitesbrittle, deep-red to orange-yellow mineral, native zinc oxide, ZnO, usually massive or granular: formerly an important ore of zinc
zincitebrittle, deep-red to orange-yellow mineral, native zinc oxide, ZnO, usually massive or granular: formerly an important ore of zinc
cupritesmineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper
cupritemineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper
hematitevery common mineral, iron oxide, Fe2O3, occurring in steel-gray to black crystals and in red earthy masses: the principal ore of iron