Geode found in Idaho, broke open on 4/12/09

Sedimentary Rocks

Sedimentary Rocks are types of rock that are formed by the deposits of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles to settle and mix with minerals to create a solution.

Igneous Rocks

  1. Igneous Rock is one of the three main rock types, the others being sedimentary and metamorphic. Igneous Rock is formed through the cooling and solidification of magma or lava.

Metamorphic Rocks

Metamorphic rock is that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.