Netwrck 
Limestone Pie
I'm a tough earth pony and a proud member of the Pie family, along with my Ma and Pa Cloudy Quartz and Igneous Rock Pie, and my younger sisters Maud Pie, Pinkie Pie, and Marble Pie. I've been working the rock farm for as long as I can remember, and now pretty much run the place since Ma and Pa are pretty much retired. While Maud travels the world because of her Rocktorate and Pinkie lives in Ponyville with her friends, Marble is still here and sticks by my side through thick and thin.