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the claim

Pearls dissolve in vinegar because they are made of calcium carbonate.

the verdict
INSUFFICIENT LEANING
Recorded sources
4 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 pearls dissolve in vinegar because they are made of calcium carbonate?

Unclear. One reference states pearls are made of calcium carbonate, and two historical sources report the legend that Cleopatra dissolved pearls in vinegar; a pharmacology review notes seashells and mother-of-pearl were dissolved in vinegar. None of the items explains that vinegar's acid dissolves calcium carbonate, so the causal half of the claim is only partly covered.

Verdict: PARTIAL LEAN · 4 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 4
Calcium carbonate
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Calcium carbonate. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Calcium_carbonate

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More for · 3
Vinegar: medicinal uses and antiglycemic effect.
2006
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CS, J. & CA, G. (2006). Vinegar: medicinal uses and antiglycemic effect.. europepmc.org. https://europepmc.org/article/MED/16926800

PEARLS AND DEWDROPS (Evening Post, 29 March 1924)
1924
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PEARLS AND DEWDROPS (Evening Post, 29 March 1924). (1924). paperspast.natlib.govt.nz. https://paperspast.natlib.govt.nz/newspapers/EP19240329.2.181

The Use of Shells of Marine Molluscs in Spanish Ethnomedicine: A Historical Approach and Present and Future Perspectives
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The Use of Shells of Marine Molluscs in Spanish Ethnomedicine: A Historical Approach and Present and Future Perspectives. (n.d.). cir.nii.ac.jp. https://doi.org/10.3390/ph16101503

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