Coal Value Calculator

Before deciding to mine, companies will compare the value of the coala dark brown to black combustible rock of organic origin formed over millions of years by the partial decomposition of... Read More to the cost to remove the overburdenAll of the earth and other materials, except SPGM, which lie above the lignite. After overburden is moved it is... Read More. 

For the grid squares with coal, enter the thickness of the coal seam and the overburden into the calculator. The calculator will find the ratio of the coal to the overburden. This is called the strip ratio. Each strip ratio has a different value per ton of coal. 

Record the coal value on your handout.