Igneous Rocks Identification without Rock Names

Front

What is the texture of a rock that has small crystals and is smooth to the touch?

Back

Aphanitic

Front

What is the texture of a rock that contains gas bubbles and has a spongy appearance?

Back

Vesicular

Front

What is the texture of a rock that has large, visible crystals?

Back

Phaneritic

Front

What is the composition of a rock that is rich in silica and light-colored minerals?

Back

Felsic

Front

What is the composition of a rock that is rich in iron and magnesium and dark-colored?

Back

Mafic

Front

What is the composition of a rock that has a balanced mix of light and dark minerals?

Back

Intermediate

Front

What type of rock forms from the cooling and solidification of magma or lava?

Back

Igneous Rock

Front

What is the process called when magma cools slowly beneath the Earth's surface?

Back

Intrusive Cooling

Front

What is the process called when lava cools quickly on the Earth's surface?

Back

Extrusive Cooling

Front

What is the term for the size of the crystals in an igneous rock?

Back

Texture