What Are Igneous Rocks?

igneous rock  Sub-divisions of Igneous rockHide · Acidite · Anthraphyre · Aphanide · Eutectite · Ferroplete · Normal crystalline igneous rock · Alabradorite Igneous Rocks · Basalts are dark colored, fine-grained extrusive rock · Granite is an igneous rock that is composed of four minerals · Dacite is an extrusive

Granite Granites are coarse-grained intrusive igneous rocks made of two different kinds of feldspar , together with EISCO 12PK Raw Obsidian, Igneous Rock Specimen - Approx 1- Geologist Selected & Hand Processed - Great for Science Classrooms Only 12 left in stock

Igneous rocks form when magma, or melted rock from inside the Earth, cools and hardens They can form above ground when magma erupts from a volcano as lava  Porous black volcanic rock isolated on white background · Igneous Rocks Basalt texture background Stock Photo · Granite plutonic rock, intrusive igneous rock