Question

what are natural oxides give example​

Answer 1

Natural oxides can be divided into the following types:

(1) simple oxides,

for example, silica minerals, cuprite (CU2O), corundum (Al2O3), hematite (Fe2O3), and cassiterite (SnO2);

(2) multiple oxides,

which are mixed isodesmic oxides whose crystalline structure is made up of oxygen and one or two metal atoms with

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