Fordite or Detroit Agate - if this means what I think it means, it is the packed layers of paint off the wall of a car-painting facility. Siince the paint is enamel and baked on, it cuts and polishes up nicely.
"Discriminating" used to mean to distinguish accurately, to note or observe a difference. Read my real life experience in Detroit to see the dry humor between that meaning and today's primary definition of the word: lifewithboots.blogspot.com
Book Three: "They burned it. I can't believe they burned it. It's been here for centuries." "Shut up, Graden." "Calm yerself, Chesh. Jest because you loved this plece and now et's gone doesn't mean yeh have the right teh teke it out on us."
Map of Michigan - The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake". Michigan is the 9th most populous state, and the largest by total area east of the Mississippi River. Michigan is the only state to consist of two peninsulas, with the Lower Peninsula being shaped like a mitten.