That's entirely true but I don't know if there would be that much difference, if the coal has a hard glass like appearance then you might be onto something. There's a real low ash variety that comes out of somewhere down near Hazelton that weighs a lot for the volume. There can be a significant difference in the volume of sizes however but in your case the rice takes more room than larger sizes.jimbo970 wrote: different mines ways different? Like reading rice may weigh more or less than blaschak?? Does this sound right?
All I can tell you is whenever I made a delivery where it went into drums it always took about 5 per ton. Usually they would be filled to within a couple inches of the top.