Classify the materials as minerals or non-minerals based on their descriptions.
Description
Copper is a naturally occurring inorganic material
that is solid and stable.
Amber is a tree resin derived from ancient trees.
Turquoise is a fixed chemical formula. Every
turquoise molecule is composed of the same
amount of copper, aluminum, and hydroxide.
Granite has no chemical formula. Its molecules
have no defined structure.
Crude oil is a naturally occurring liquid composed
of hydrogen and carbon.
Mineral or Non-Mineral?