15. Mineral Resources Flashcards
1
Q
What are rare earth elements?
A
- elements mined
- not actually rare, just don’t come in concentrated deposits. Have to be mined
REE mined in crust
2
Q
which country has the most rare earth elements?
A
China. Can do price fixing
3
Q
where are rare earth elements mined?
A
in crust
4
Q
What is lanthanum
A
a rare earth element used to make cathodes, electrode batteries
makes nickel metal hydride battery in prius
5
Q
Why is gold valuable?
A
1100/ oz used as money pretty physical properties- malleable, conductive, used in electronics scarce
6
Q
How do precious rare earth elements form?
A
hydrothermal alternation
yellowish-burnt color
magma superheats water near surface, and carries metals to water-rich fluids
rise and react with crust
