igneous rocks

this type of rock is used as building material

• pomice

• granite

• obsidian

• basalt

this type of rock is used in ornaments and in the past was used for tools

• pomice

• granite

• obsidian

• basalt

this type of rock is used for cleaning and polishing

• pumice

• granite

• obsidian

• basalt

this type of rock is used to make cobblestones

• pumice

• granite

• obsidian

• basalt

large crystal are present in

• extrusive igneous rocks

• intrusive igneous rocks

small crystals are present in

• extrusive igneous rocks

• intrusive igneous rocks

this mineral gives rocks a light coloration

• basalt

• silica

• granite

• pumice

this mineral gives rocks a dark coloration

• basalt

• silica

• granite

• pumice

this rock forms from lava

• intrusive

• extrusive

this rock forms from magma

• intrusive

• extrusive