Igneous rocks close igneous rockIgneous rocks are those which have been formed by the cooling and solidification of molten rock (magma) from underneath the earth’s crust. are formed by magma ...

An igneous rock has come ... the geographical distribution of the rocks, their connection with crust-movements, and the sequence of eruption of different types at a given centre.

There are over 5,000 known types of minerals ... combinations of these minerals are endless. Rocks also differ based on how they were formed. Igneous rocks form out of cooling lava or magma.

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.