Harnessing natural ores to supplement essential elements in water: Unveiling dissolution dynamics and underlying mechanisms
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A controlled four-rock dissolution study found 2.27 mg/L magnesium after 24 hours for its best-performing Muyu-stone sample, about eleven-fold the Maifan-stone sample and much more than tourmaline or pumice. This demonstrates material-specific release, not a standard dose for consumer loose stones or a clinical health effect.
Challenges
Mineral release varies strongly by material and contact conditions, so generic loose stones cannot be assumed to provide a nutritionally meaningful dose or broad health benefit without product-specific concentration data.