Igneous Rock Quiz

Felsic or Mafic?

• Felsic

• Mafic

Rock that hardened deep within the earth

• Intrusive

• Extrusive

Quickly or slowly cooled

• Quickly

• Slowly

What rock is this?

• Granite

• Gabbro

• Pumice

• Scoria

Crystal size

• None

• Small

• Coarse

Name this small crystalled mafic rock

• Granite

• Gabbro

• Basalt

• Rhyolite

Intrusive or Extrusive?

• Intrusive

• Extrusive

Name this rock

• Granite

• Gabbro

• Rhyolite

• Basalt

Describe the rock's texture

• vesicular

• fine

• coarse

• glassy

Rock composed mainly of light colored minerals

• mafic

• felsic