Rocks Flashcards
1
Q
Metamorphic rock
A
rock formed from another rock that has been under great heat or pressure (or both)
2
Q
Minerals ores
A
rocks mined to obtain a metal or other chemical within them
3
Q
Mining
A
rocks mined to obtain a metal or other chemical within them
4
Q
Minerals
A
substances that make up rocks. Each mineral has its own chemical make-up.
5
Q
Obsidian
A
black, glassy rock that breaks into pieces with smooth shell-like surfaces
6
Q
Open cut mining
A
mining that scours out soil and rocks on the surface of the land
7
Q
Under ground mining
A
mining that uses shafts and tunnels to remove rock from deep below the surface
