glass from somewhere that no longer exists

did you know the trademark aqua blue of many old glass jars (and insulators) came from the iron-rich sand of the Hoosier Slide, a 200 foot tall sand dune on the shore of Lake Michigan in Indiana? It's gone now. Has been for a very long time. Sand mining for glass making, despite only starting in 1890, had by 1920 removed the entire dune, all 13,500,000 tons of it. Melted down into untold thousands of jars and electrical insulators, in every household and on every utility pole across a nation.

I got this at an estate sale recently, and aside from the fact it's a very pretty color I'm also thinking about this a lot.