OSMIRIDIUM is validvalid

a very hard corrosion-resistant white or grey natural alloy of osmium and iridium, also IRIDOSMINE, IRIDOSMIUM

134,896 of 196,601 in NWL2023·also valid in CSW24

a very hard corrosion-resistant white or grey natural alloy of osmium and iridium, also IRIDOSMINE, IRIDOSMIUM

165,509 of 280,887 in CSW24·also valid in NWL2023

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