Add the “ahhh” factor to any outdoor living space with Mutual Materials Glacier Slate architectural slabs. With its slate texture finish, these large slate pavers give your project a natural look. Combined with any of our other 24 x 24 concrete pavers, Glacier Slate helps expand the versatility of your design. Maintenance: Mutual Materials Glacier Slate architectural slabs are manufactured to exacting standards under controlled conditions to produce a finished product that is both strong and durable.