METROPOLIS DARK QUARTZMetropolis Dark Quartz is called Dark grey quartz . Metropolis Dark has a concrete like appearance due to its general tone and textured surface, which features tiny charcoal grey and white flecks on a dark slate grey background. A natural quartz surface combines technology and the natural world. It creates a high performance surface with both aesthetic appeal and practicality. Technology advanced polymers are combined with color controlled quartz.