I have an adobe brick fireplace which I'd like to cover in an arabesque white tile. If you're familiar with adobe brick, you know that it has a lumpy texture. We've tiled bathrooms and backsplashes successfully, but the prep for the fireplace tiling has us stumped. Any advice? I'm also looking for a larger tile than the one I've come across so far ( Whisper White Arabesque 10-1/2 in. x 15-1/2 in. x 8 mm Glossy Ceramic Mesh-Mounted Mosaic Wall Tile) . Most of those I've seen are small and more appropriate for backsplashes. A source for a larger tile would be much appreciated. Thank you in advance for your help!