Which is not a characteristic of a mineral? Question options:

a)

It is resistant to scratching, which refers to its hardness.

b)

It forms in nature and is not man-made.

c)

It does not come from living things, so it is inorganic.

d)

Its atoms are arranged in regular, repeating pattern, giving it a crystal structure.

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).

that's what i got you can count the number of atoms