What's in crushed volcanic pumice?

Silicon dioxide, Aluminum oxide, Iron(III) oxide, Calcium oxide, Sodium oxide, Potassium oxide, Magnesium oxide, Titanium dioxide, Water, Trace manganese oxide, Trace phosphorus pentoxide, Trace sulfur trioxide

CompoundFormulaSMILES
Silicon dioxide O=[Si]=O
Aluminum oxide [O-2].[O-2].[O-2].[Al+3].[Al+3]
Iron(III) oxide O=[Fe]O[Fe]=O
Calcium oxide O=[Ca]
Sodium oxide [O-2].[Na+].[Na+]
Potassium oxide [O-2].[K+].[K+]
Magnesium oxide O=[Mg]
Titanium dioxide O=[Ti]=O
Water O
Trace manganese oxide
Trace phosphorus pentoxide
Trace sulfur trioxide

source: ai · model: GPT-5 · first answered: 2026-08-30 20:49:16

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