Rocks and MineralsRocks and Minerals

Types of RocksTypes of Rocks

• Igneous Rock

• Sedimentary Rock

• Metamorphic Rock

Igneous RocksIgneous Rocks

• Formed by molten rock material as it cools and hardens

• Classified as Extrusive/ Intrusive

• Examples:Basalt

ObsidianPumiceGranite

Sedimentary RockSedimentary Rock

• Formed from sediments that have been pressed together

• Classified by Clastic/ Nonclastic

• Examples:LimestoneSandstone

ShaleConglomerate

Metamorphic RocksMetamorphic Rocks

• Formed by heat and pressure

• Classified as Foliated/ Nonfoliated

• Examples:GneissSchist

QuartziteMarble

Questions to think of:Questions to think of:

• What do you notice about the color?

• How does the rock feel?

• What is the grain size of the rock?

• What is it’s weight?

• Other interesting characteristics?

• You will have 3 minutes at each station.

Rocks: MetamorphicRocks: Metamorphic

Metamorphic Rock:Metamorphic Rock:

Sedimentary Rock:Sedimentary Rock:

Example of Sedimentary Rocks:Example of Sedimentary Rocks:

More Examples of Sedimentary More Examples of Sedimentary Rocks:Rocks:

Igneous RockIgneous Rock

• Igneous Rock

Mineral:Mineral:

Rock Cycle:Rock Cycle: