The American Midwest is dotted with quarries that produce everything from road fill to food grade lime and and frac sand. Driving along the interstates in Indiana, Ohio and Michigan you might even recognize the names of various small towns on the highway signs from your mineral labels. As most of these quarries are seeking calcium bearing materials of one sort or another, it goes without saying that a lot of these locations als have calcite, celestite, and (to a lesser extent) fluorite. While there are a few particular locations that have become particularly famous for their fluorites, Michigan has been largely left out. There is a lot of calcite and celestite in Michigan, but for whatever reason, almost no fluorite. This is a very rare sample from the Holloway quarry-- it probably looks indistinguishable from many of the other brown fluorites that occur across the midwest, but it was obtained from the guy who collected it, so it is not mislabeled. This location produces a lot of calcite and those distinct, included, bar-like celestites, but fluorite is very, very rare from here.