in which condition a mineral become an ore
Answers
Answer:
The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining, and is therefore considered an ore.
Answer:
Explanation:
Source is required because metal must come from somewhere, and be liberated by some process.
Transport is required first to move the metal-bearing fluids or solid minerals into their current position, and refers to the act of physically moving the metal, as well as to chemical or physical phenomenon which encourage movement.
Trapping is required to concentrate the metal via some physical, chemical, or geological mechanism into a concentration which forms mineable ore.