• Mining - Wikipedia

    The mining industry in the early Middle Ages was mainly focused on the extraction of copper and iron. ... also wash basins and ... materials, bore hole mining, drift ...

  • Iron ore - Wikipedia

    Iron ore is the raw material used to make pig iron, ... Mining iron ore is a high volume low margin business, as the value of iron is significantly lower than base ...

  • Base Metal and Iron Ore Mining - IFC

    material and machinery maintenance and repair can lead to contamination of surface water. Significant levels of dust, ... Ore Mining. Base Metal and Iron Ore Mining ...

  • Materials - Official Avorion Wiki

    This level is simply the number or index of the material, starting with Iron (level 0), up to Avorion (level 6). A mining laser can only successfully mine materials that are no more than one level above the material it is made of, and same is true for Salvaging lasers.

  • Dry-washing for Gold

    They are literally a gold mine of placer ... DRY-WASHING AND CLAY-LIKE MATERIALS. ... demonstrates how and when to perform a final clean-up during dry-washing: