is: EF04 / .1MIXMOS Sand and Surf - Linear Mixed Mosaics. You can find a retailer at www.crossvilleinc.com or if you are local to the Twin Cities, I know that Kate-Lo Tile carries Crossville.
com/2012/01/04/colors-of-fall-slate/
Yes on all points Sandra mentioned. They do have a great look, but shaling will occur with slate, and will take some time to completely settle. It does offer a great natural looking floor however.