Select the one substance that is not a mineral.

 - Molasses is made by humans. It is not a pure substance.
 - Pyrite is formed in nature. It is a pure substance.
 - Sphalerite is formed in nature. It is a pure substance.
Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Pyrite is a mineral.
Sphalerite is a mineral.
Molasses is made by humans. But minerals are not made by living things.
Molasses is not a pure substance. But all minerals are pure substances.
So, molasses is not a mineral.