Assertion: meteorite's iron | /r/AtLocation | iron meteorites
Facets:
Source sentences:
text: The iron found in iron meteorites was one of the earliest sources of usable iron, before humans invented smelting.
text: The iron found in iron meteorites was one of the earliest sources of usable iron, before humans invented smelting.
text: The iron found in iron meteorites was one of the earliest sources of usable iron available to humans, before the development of smelting that signaled the beginning of the Iron Age.