Basalt

Scoria

Pumice

Obsidian

Volcanic Bomb

Extrusive Igneous Rocks

Home Igneous Rocks Extrusive Igneous Rocks
Extrusive igneous rocks, additionally referred to as volcanic rocks, are fashioned on the crust’s surface due to the partial melting of rocks within the mantle and crust. Extrusive Igneous Rocks are listed below.
Pyroxenite (Stillwater Complex, Neoarchean)

Pyroxenite

Pyroxenite is an ultramafic igneous rock that contain pyroxene group minerals such as augite, diopside, hypersthene, bronzite or enstatite. This is a coarse-grained rock...
Camptonite lamprophyre (Mesozoic, 100-200 Ma; Campton Falls, Grafton County

Lamprophyre

Lamprophyre is ultrapotassic igneous rock that is occurring as dikes, lopoliths, loccoliths, stocks and small intrussion. It is alkaline silica-undersaturated mafic or ultramafic rocks...

Lapilli

Lapilli, which means "little stones" in Italian, refers to small rock fragments ejected during volcanic eruptions. These fragments typically range in size from 2...

Phonolite

Phonolite is a type of volcanic rock that belongs to the family of igneous rocks. It is characterized by its unique mineral composition and...

Pillow Lava

Pillow lava is a type of basaltic lava that forms underwater, typically in the ocean. It gets its name from the characteristic pillow-like shapes...
3,433FansLike
23,094FollowersFollow
2,490SubscribersSubscribe