Two translucent white spheres, each with a single face, oppose one another along a light rail platform. Radial lines patterned with small fasteners flow from the back of the spheres towards the front, echoing the regional vernacular of riveted steel mining equipment, where on each they are interrupted by a flat cut circular face. From the face on one sphere protrudes a black pointed cross, an abstraction of a traditional rock drilling bit tip. The face on the other sphere pulls a black and a white spiral into the body of the sphere, an abstraction of an open pit mine. At night, both spheres glow, colorfully exchanging back and forth in a dialogue.