Rockpedia

Map

Every origin in the corpus with a coordinate, plotted. A dot is a place; how big it is says how much came from there.

Mostly rock Mostly metal A whole country or region Dot size is how much came from there. Press a dot for everything from that place.
A ring is a whole country or region, drawn at its centre. The corpus records the area rather than a point, and the centre of the United States is in Kansas. 4 origins are vaguer still ("Europe", "Global") and are listed below rather than placed. Equirectangular projection, coastlines from Natural Earth

Every place

Too vague to plot