Assertion: terrestrial planet's core | /r/HasProperty | nickel
Facets:
Source sentences:
text: These layers consist of a core composed of iron and nickel, an upper and lower mantle composed of viscous silicate materials, and a crust composed of solid silicate materials.
text: The inner core measures an estimated 1220 km and is composed of iron and nickel, while the outer core extends beyond it to a radius of about 3,400 km.
text: Like Earth, this is due to the fact that the core is composed of iron and nickel, while the mantle is made up of silicate materials.