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Old April 10th, 2010, 09:30 PM
kalutika's Avatar
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Mad Alchemist

Join Date: Apr 2008
Location: Los Angeles
Posts: 11,250
Default Re: Natural coal material??

Material can make a difference but when it comes down to it they should all just be carbon. What really matters is the density that each coal has. The denser it is the longer it will burn.
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