• Natural mine gravel
  
  A natural grain distribution sandy gravel (NSG), raw mine product. As it is a natural material, there are no standard requirements it needs to meet.
  
  Fields of use: road foundation, filling.
  
  
• Surface sand
  
  Raw mine product, which is found above the gravel, when the open-pit mine is being cleared off.
  
  Fields of use: undemanding masonry, rendering.
  
  
• Refuse earth
  
  To be found under the uppermost layer of soil, when the open-pit mine is being cleared off.
  
  Fields of use: road foundation, filling.