A naturally occurring

solid mixture of one

or more minerals and

organic matter.

• Composition – chemical make up of rock; can be minerals

or other materials.

• Texture – size, shape, and position of the grains that make up the rock.

• Rock Cycle- the continual process by which

new rock forms from old rock.

• Weathering - rocks broken into sediments

• Erosion - sediments moved

• Deposition - sediments dropped

Composition – chemical make up of rock; can

be minerals or other materials.

Texture – size, shape, and position of the grains that make up the rock.

Coarse grain

Fine Grain

Rock Cycle- the continual process by

which new rock forms from old rock.

Weathering - rocks broken into

sediments

Erosion - sediments moving

Deposition - sediments dropped

Made of: volcanic material

Intrusive – formed below Earth’s surface

(magma) Cools slowly, large crystals

Extrusive – formed above Earth’s surface

(Lava). Cools Fast, Small Crystals

Granite, obsidian, basalt

Made by: cooling magma/lava

Igneous Rock Pics!!!

Igneous Rock Pics!!!

Basalt Pumice

Obsidian

Made by: compaction & cementation

Made of: sediments Clastic: made of other rocks

Chemical: forms from water and dissolved minerals Organic: made of remains of living things

How are sedimentary rocks formed?

Look at the layers!

Sedimentary Pics!!!

Breccia Hematite

Limestone Sandstone

Sedimentary Pics!!!

Made by: heat & pressure Made of: other rocks

Foliated: mineral grains are

layered

Non-foliated: mineral grains are

NOT layered

Metamorphic Rocks

Heat & Pressure

Heat & Pressure

Heat & Pressure

Slate

Shale

Gneiss Granite

Quartzite

Sandstone

Metamorphic Rocks

Marble Limestone

Metaconglomerate Conglomerate

Heat & Pressure

Heat & Pressure

Metamorphic

Gneiss - Folded

Schist