Surprisingly, Mr Albert called me back! I was very up front with him about what quantities I was considering. He said that tho they had not shipped in small qty perhaps they could. His definition of small is a trailer load, 18 wheeler, filled with 55 gallon drums. LTL?
I asked him about the iron percentage and he said about 70%.
They had not tested for carbon. He did say there were some hydrocarbons. the cement companies found that useful.
He estimated the cost to be about $1/lb. If that included shipping I do not know.
I left it with him that I would be talking with others and get back to him.
I will talk with Mike Blue and prof Potraz(sp?) at the U of M and see what they say.
Are you near CT. ?