Earth's core is composed primarily of an iron-nickel alloy

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Earth's core is composed primarily of an iron-nickel alloy?

Yes. Geophysical and mineralogical evidence consistently indicates that Earth's core is primarily composed of an iron-nickel alloy alongside various light elements.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked 4 Aug 2026

The analysis

The retrieved papers include multiple recent studies (such as papers 0 and 3) explicitly stating that Earth's core is composed of an iron-nickel alloy. There is no evidence in the provided literature contesting this scientific consensus, so the verdict is SUPPORTED.

Evidence for · 2

Two-phase mixture of iron–nickel–silicon alloys in the Earth’s inner core

2021

Get citation

Ikuta, D., Ohtani, E., & Hirao, N. (2021). Two-phase mixture of iron–nickel–silicon alloys in the Earth’s inner core. doi.org. https://doi.org/10.1038/s43247-021-00298-1

See more details

More for · 1

The Fe-Ni phase diagram and the Earth's inner core structure.

2025

Get citation

L, W., Z, W., KM, H., RM, W., & Y, S. (2025). The Fe-Ni phase diagram and the Earth's inner core structure.. doi.org. https://doi.org/10.1126/sciadv.adu1998

Related receipts

The Earth's inner core is composed of about 85 percent iron and 15 percent nickel despite nickel being denser PARTIAL LEAN related question, same topic
Is it true that scientists confirm an iron core at the center of the earth using seismology? SUPPORTED related question, same topic
Is it true that liquid iron in Earth's outer core generates the planetary magnetic field? SUPPORTED related question, same topic
Is it true that Earth's magnetic field is generated by moving liquid iron in the outer core, not by magnetized iron? SUPPORTED related question, same topic

Receipt History

first checked04 Aug 2026

judged → SUPPORTED · 8404 Aug 2026

Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.

Check your own claim

Challenge the receipt

I have a source that contradicts this verdict I have a source that supports it No source: request a receipt review Requests are recorded for review. This does not start an automatic check or guarantee a response time.

See the evidence timeline

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work