Igneous rocks

According to Bowen’s Reaction Series, which minerals crystallize first at high temperatures?

• Quartz and potassium feldspar

• Muscovite and biotite

• Olivine and pyroxene

• Feldspar and calcite

Which of the following is an extrusive igneous rock?

• Granite

• Diorite

• Basalt

• Gabbro

Igneous rocks form when __________ material cools and crystallizes.

A rock is a naturally formed mixture that may contain minerals, rock fragments, and __________ glass.

__________ igneous rocks form beneath Earth's surface and cool slowly

The size of the mineral crystals in a rock is called the __________ size

The grain size depends on the __________

• Texture

• cooling rate

• atoms arrangement

• type of rock