Igneous Rocks Flashcards
0
Q
Extrusive igneous rocks crystal size
A
Small
1
Q
Name the two type of igneous rocks
A
- Extrusive igneous rocks
2. intrusive igneous rocks
2
Q
Intrusive igneous rocks crystal size
A
Large crystals
3
Q
Extrusive igneous rocks characteristics
A
- Holey
- Cools outside the crust
- Small crystals
- Rapid cooling
4
Q
Example of extrusive rocks and there usages
A
- Pumice ~ clean dead skin off feet, emery boards for shaping nails, some soaps that feel rough on your skin.
- Scoria ~ landscaping, filters and concrete.
5
Q
Intrusive igneous rocks characteristics
A
- Set inside the crust
- Large crystals
- Cools slowly
6
Q
Example of intrusive rocks and a example of there usage
A
- Granite ~ Building, monuments, road surfaces and kitchen bench tops.
- Dolerite ~ Road surfaces and concrete.
