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the claim

Natural diamonds form from compressed coal.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 2 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 natural diamonds form from compressed coal?

No. A reference source explicitly calls the idea that diamonds form from compressed coal a common misconception, noting coal comes from buried plants while most dated diamonds are far older than the first land plants. A separate experimental study indicates diamonds grow from carbon- and water-rich fluids rather than coal.

Verdict: REFUTED · 0 sources for, 2 against · Last checked

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Evidence against · 2
Diamond - Wikipedia
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Diamond - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Diamond

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More against · 1
The growth of fibrous, cloudy and polycrystalline diamonds
2012
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The growth of fibrous, cloudy and polycrystalline diamonds. (2012). hal.science. https://doi.org/10.1016/j.gca.2011.11.016

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