It looks like a piece of cinderblock using ground up industrial slag as the aggregrate.
Mike Fowler Chicago not too far from where US Steel South Works used to be located. > yes, that had been my first thought, mortar or concrete, however it has > numerous spherical glassy inclusions, and what look like larger melted > black glassy features. Some of the spherules are very glassy clear > red-brown some are opaque non glassy. I think I have just found one > small metallic grain. Only thing is its not normal for concrete to have > perfectly spherical glassy features? > > I've just uploaded another pic showing a spherule. > > The black inclusions in the pic are quite glassy looking, with vesicles > in them. > > http://s911.photobucket.com/albums/ac315/meteoritemark/ > > Any help appreciated with this one, it's a bit strange! > > Mark ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list