Eisen ∙ fer ∙ ferro ∙ hierro
group ‘n+n’ / noble gases and (rather) noble metals: R, RO4
- melting point: 1535°C
- boiling point: 2861°C
- density: 7.86 g/cm³
Eutectic cast iron contains 4.3 % carbon and melts at 1147°C — tec-science
⚒ minerals:
Cementite Fe3C – a hard and brittle metastable phase with 6.67 wt. % carbon
Austenit: kubisch flächenzentriert Fe mit C in Oktaederlücke
Meteoric iron was also fashioned into tools in the Arctic, about the year 1000, when the Thule people of Greenland began making harpoons, knives, ulus and other edged tools from pieces of the Cape York meteorite. — wikipedia
☢ radioisotopes:
Fe-55 (T1/2=2.7 a) activation product