A student wrote the following response to the question: what are elodea plants made of? Elodea plants are made of cell walls, Cytoplasm, and chloroplasts.
His friend told him that he forgot to include the levels of complexity.
Improve the first students response, keeping in mind his friend's suggestion

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).

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