How can you describe the electrical charge of an ionic compound

The net electrical charge of an ionic compound is zero. The unequal number of ions in a compound introduces the electric charge. The number of positive and negative ions are equal in an ionic compound, and this equality in number but opposition in charges introduces electrical neutrality in ionic compounds, making the net charge zero.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).