Rock and minerals Flashcard

Front

What is a mineral?

Back

A substance that forms in nature, is a solid, has a definite chemical makeup, and has a crystal structure.

Front

What are igneous rocks?

Back

Types of rocks that are formed when magma or lava cools.

Front

What are metamorphic rocks?

Back

Rocks that form when other rocks are heated and squeezed together; requires heat and pressure.

Front

What is a rock?

Back

A naturally formed solid that is usually made up of one or more types of minerals.

Front

What is the streak of a mineral?

Back

The color of the powder left when a mineral is rubbed against a hard surface.

Front

What is the definition of sedimentary rocks?

Back

Rocks formed by the accumulation and compaction of mineral and organic particles.

Front

What is the Mohs scale?

Back

A scale that ranks minerals based on their hardness from 1 (softest) to 10 (hardest).

Front

What is cleavage in minerals?

Back

The tendency of a mineral to break along flat surfaces.

Front

What is a crystal?

Back

A solid in which atoms are arranged in an orderly repeating pattern.

Front

What is the difference between rocks and minerals?

Back

Minerals are pure substances with a specific chemical composition, while rocks are made up of one or more minerals.