- What is concentration? What fineness?
- What is the particle size? What is the grain size? What is the mesh?
- What is the gangue? What is the surrounding rock and what is waste rock?
- What is the useful minerals and what is the use?
- Sheave wheel
- Set complete range
- Set complete
- Selective mining
- Seismic prospecting
- Secondary deposit
- Screening equipment
- Scintillation counter
- Run of mine (ROM)
- Run of quarry (ROQ)
- What is the crushing ratio (size reduction ratio)?
What is the gangue? What is the surrounding rock and what is waste rock?
The ore does not use value or the part of can not be used called gangue, Xu tungsten ore generated in the quartz veins, this quartz vein is called gangue.
The rock around ore bodies called Wai stone. The upper part of wall rock of the ore body called on the plate surrounding rock or the top plate, the orebody lower part of the surrounding rock is called the disk surrounding rock or chassis, the rock caught in the ore body is called with stone.
The concept of waste stone and ore are relative, Accompanied by recovery of non-industrial value of the rock in the mining process called waste rock.
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