Extrusive and Intrusive Rock Formation

Coarse grained

• intrusive

• extrusive

• metamorphic

• sedimentary

What do vesicular rocks looks like?

• They have holes in them

• They are smooth and shiny

• They are completely solid

• They are very heavy

Magma cools slowly

• Extrusive

• Intrusive

• Volcanic

• Sedimentary

Fine grained

• Intrusive

• Extrusive

• Coarse grained

• Sedimentary

Large crystals

• extrusive

• metamorphic

• sedimentary

• intrusive

smaller crystals (or no crystals at all)

• intrusive

• metamorphic

• sedimentary

• extrusive

Porphyritic rocks mean...

• They have two different sized crystals

• They are formed only through extrusive processes

• They are composed entirely of small crystals

• They are always found in sedimentary environments

Cooled and crystallized above the surface

• Intrusive

• Extrusive

• Metamorphic

• Sedimentary

Magma cools quickly

• intrusive

• extrusive

• metamorphic

• sedimentary

Are vesicular rocks intrusive or extrusive?

• Intrusive

• Extrusive

• Metamorphic

• Sedimentary