These lovely tiles are in metallic gold. The tops are smooth, while the impressions in the foil appear to give the tiles texture. They look a bit like a worn tapestry. The color and texture is from foil beneath the glass tiles. These are 20mm (3/4"), and are 4mm (1/6") thick.
With the foil, be sure to test your adhesive to verify it won't affect the foil. Likewise, these should be used for interior, dry installations.
