what are the properties of minerals and rocks1
Post on 15-Apr-2017
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What are the properties of minerals and
rocks?
Types of rocks
1) Sedimentary
rocks
2) Igneous rocks
3) Metamorphic
rocks
Igneous rocks1
- Formed when rocks melt and then cool.
1) Rocks are pushed under the earth crust where heat and pressure turns them to magma.
2) Magma comes out of a volcano and cools to form Igneous rocks.
IfIgneous rocks cool down
quicklyOutside the volcano
(Extrusive igneous rocks)
Look like glassExample:
Basalt
Igneous rocks cools down slowly
Inside the volcano(Intrusive igneous rocks)
Has large grainsExample:Granite
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