The correct answer is C. Quartz.
A mineral is a naturally occurring, inorganic solid with a definite chemical composition and crystal structure. It is a solid because it has a definite shape and size. It is inorganic because it does not come from living things. It has a definite chemical composition because it is made up of the same elements in the same proportions. It has a definite crystal structure because its atoms are arranged in a regular pattern.
Basalt is an igneous rock. It is formed when magma or lava cools and solidifies. Granite is an igneous rock. It is formed when magma or lava cools and solidifies. Syenite is an igneous rock. It is formed when magma or lava cools and solidifies.
Quartz is a mineral. It is made up of silicon and oxygen
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