Rocks and Minerals Review ESRT

Front

What is an igneous rock?

Back

A type of rock formed from the cooling and solidification of magma or lava.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive rocks form from magma that cools slowly beneath the Earth's surface, while extrusive rocks form from lava that cools quickly on the surface.

Front

How are metamorphic rocks formed?

Back

Metamorphic rocks are formed by adding heat and/or pressure to existing rocks.

Front

What are sedimentary rocks?

Back

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

Front

What is the process of lithification?

Back

The process of turning sediments into sedimentary rock through compaction and cementation.

Front

What are clastic rocks?

Back

Rocks composed of fragments (clasts) of pre-existing rocks.

Front

Which sedimentary rocks are formed from mostly organic matter?

Back

Coal and limestone.

Front

What is the smallest grain size among clastic rocks?

Back

Shale.

Front

What is a mineral?

Back

A naturally occurring inorganic solid with a definite chemical composition and crystalline structure.

Front

What is the definition of luster in minerals?

Back

Luster refers to the way light interacts with the surface of a mineral.