1. How we get our minerals and rocks
Mining
How we get our minerals and rocks

2. What things can form minerals?
Surface water carrying dissolved minerals
When salt water evaporates
Presence of groundwater
Magma can carry crystals

3. ORE: A natural material whose concentration of economically valuable minerals is high enough for the mineral to be mined profitably
A material that is not man-made,
It is pure and worth lots of money
and companies can sell it to make a profit

4. What affects how much ore is worth?
Cost of extracting vs the value of the ore
Usually have to be processed
Gold ore 

5. How can we mine for ore?
Surface mining (pits, surface coal mines, quarries)
Subsurface mining

6. a. Open Pits
To remove large, near-surface deposits of things like gold and copper
Explosives
Transport away

8. b. Surface Coal Mines
Aka “strip mining”

9. c. Quarries
Open pits that are used to mine building stone, crushed rock, sand, gravel

10. 2 mining methods:
Surface mining
Subsurface mining

11. Subsurface Mining When mineral deposits are too deep
Dig passageways into the Earth

12. What is responsible mining?
Mining can destroy or disturb habitats of plants and animals
Waste products can pollute water

13. Ways to fix:
Reclamation: the process by which land used for mining is returned to its original state or better
Required by law

14. Ways to fix:
Another way to be responsible: reduce mineral product use, recycle, etc

15. Your Job: Read 78-79 Fill in the notes as you read Homework: Page 79