Chapter Rocks

light colored rocks , high in silica

• Granite

• Basalt

• Marble

• Iron Pyrite

Rocks that have had heat, pressure, or chemicals that change the rock.

• Dirt

• Sedimentary

• Igneous

• Metamorphic

The look and feel of a rock

• Grain

• hardness

• Streak

• Texture

Rock made from cooling magma

• Sedimentary

• Igneous

• Metamorphic

• Soil

When small rock particles or plant and animal remains cemented or pressed together

• Sedimentary

• Metamorphic

• Igneous

• Soil

Igneous rocks formed on the surface of the Earth

• Grain

• Texture

• Intrusive

• Extrusive

Igneous rocks formed in the Earth

• Grain

• Intrusive

• Texture

• Extrusive

Dark colored rocks, low in silica

• Granite

• Extrusive

• Basalt

• Intrusive

the 20 most common minerals that form most of the rocks.

• Rock Forming Minerals

• Organic Minerals

• Inorganic Minerals

• Nonmetal Minerals

Particles of minerals in rocks

• Texture

• Streak

• Grains

• Hardness