This is a reprint of an article originally published by Kosmologym (http://www.kosmologym.com/dirtball.html) We previously reported on Walker Tufts’ plans to create an art installation that illustrates the concept of remineralization for the Franconia Sculpture Park in Shafer, MN. The installation has been completed.   Dirtball is an invitation to a game that is always going on beneath our feet. The court invites you to join this soil making game along with birds, bugs, plants, minerals and weather. The prairie plants in the key garden below the purple martin house reach deep into the ground and draw minerals to the surface. The purple ...