source: Radar testing shows composition of mostly iron-nickel
target: Characteristics Radar observations mentioned a fairly pure iron-nickel composition
references: Characteristics Radar observations mentioned a fairly pure iron-nickel composition Characteristics Radar observations show a fairly pure make up of iron and nickel. Characteristics Radar observations indicate a fairly pure iron-nickel composition. Characteristics Radar observations show a adequately pure iron-nickel composition. Radar observations indicated a pure iron-nickel composition. Characteristics Radar observations point out a composition made of iron and nickel which is pure to some extent. Characteristics Radar observations show a fairly pure iron-nickel composition.