Is it ok to put a mirror above a fireplace? Yes, absolutely! Use these fireplace mirror ideas to create a stunning, designer inspired mantel with a mirror! Fireplace mantel mirror ideas with layered, rustic, black, white, gold, bronze, wood, stone, antique, oval, square, rectangle, round, arched, small, large & huge mirrors. Place your mirror next to, above, over, leaning, wall mounted or built into the mantel. Rustic, modern & vintage style mirrors from Anthropologie & other good finds!