Coal balls 1 to 4 by Elizabeth G Fagan for her blog Lake Michigans Left Coast

Coal Balls 1 to 4

The rocks on my beach—which I call Lake Michigan's Left Coast—are incredibly rich in color, thanks in part to waves of glaciation that brought so many types of rocks to the region. Rich geological history spanning many rock-forming processes plays equal part in the palette. The warm caramel-brown swirls of these coal balls are interspersed … Continue reading Coal Balls 1 to 4