Select the one substance that is not a mineral.
A: Celestine is a pure substance. It is not made by living things.
B: A brick is made by humans. It is a solid.
C: Halite is a solid. It is not made by living things.
Compare the properties of each substance to the properties of minerals. Select the substance whose properties do not match those of minerals.
Halite is a mineral.
Celestine is a mineral.
A brick is made by humans. But minerals are not made by living things.
So, a brick is not a mineral.