Answer :
Since siderite has always had the chemical symbol feco3, it belongs to the carbonate class of rocks.
The atoms in each element of a compound is revealed by the molecular formula. It includes the symbols for the atoms of each element found in the compound, together with a tally of how many of each element there are overall in the shape of subscripts. Empirical, molecular, and structure chemical formulas are the three basic categories. The lowest whole-number ratio of the atoms in a compound has been shown by empirical formulae, the numbers of every form of atom in a molecule is shown by molecular formulas, and the bonds between the atoms or molecules are being shown by structural formulas.
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