Metal Ores - Basic definitions
Ore: The rock contaning valuble metal(s) that is economic to mine.
Ore Mineral: Mineral contaning valuble metal(s)
Gangue Mineral: Low - value waste mineral.
Grade: The amount of metal in the ore
Cut off grade: Minimum Grade that is economic to mine
Natural Resource: Valuble and useful natural material.
Mineral Resource: Metallic, Non- metallic or industrial minerals.
Reserves: The amount of resource that can be extracted at a profit using existing technology.
Ore Deposit: Accumulation of metal that may be economic to mine
Average Crustal Abundance: The amount of metal in average continental crust.
Concentration factor: The amount by which the metal is concentrated to make an ore deposit.
Ore Mineral: Chalcopyrite
Hardness: 3.5 - 4
Density: 4.2 g/cm³
Ore Mineral: Gold
Density: 19.3 g/cm³