Cannot see the heart at the bottom left. It is white-ish. ;D I made this on a base of plywood, then fireboard. I used tile glue for some small slate tiles, filled in with smooth rocks I found from an old path a previous owner started to lay in our meadow area. There are a few crystal rocks here and there too. The grout is a cement type. The photo is before the homemade wood plank flooring and woodstove was put in. Yeah, I am making our own wood flooring, plank by plank and room by room. Even made up a good wax without the stench.