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Hey Folks, today I got two bags from a company called "PPS Stade" located in the near of Hamburg Germany. One bag bituminous coal from Sweden and one bag blacksmith coke. Of course I inspected the coal and the coke by taking one glass of each and look through it. The coal is very clean and has no "stuff" in it. But the one glass of coke contained three stones, one white one (I think quartz) with black dots and one looking like flint stone and one that looks kind of like basalt. Of course the stones originally appeared black from the dust but I felt that they are different from the coke and washed them. My question now is whether that is normal and acceptable or whether I will have to raise a complaint against the coal supplier where I bought the stuff? I mean I actually paid money for stones that will have no heating function but clock up my forge... Here are some pictures: Thak you for your advise in anticipation! - Daniel