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http://phys.org/news/2013-04-mineral...r-deposit.html
Magnesium pyroxene (MgSiO3), calcium pyroxene (CASiO3), iron pyroxene (FeSiO3) are water-insoluble salts; derived from water soluble metasilicic acid (H2SiO3) which combines with water soluble cations (Mg,Ca,Fe) and precipitates to the seafloor. John Curtis |
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