The onyx bases look good an are a fraction of the cost of a tiled base. As to stain free grouts---Latacrete makes an epoxy called Spectra Lock---Good stuff although unforgiving of mistakes---There is a Urathane grout which has received good reviews but I haven't used it yet.---Mike----.
The blueberry, named for its velvety, deep-blue color, is one of the few fruits native to North America. Native Americans used the berries, leaves and roots for medicine and used the fruit as a fabric dye. Blueberries originally are found in the wild, and now they can grow in many regions of the United States.
Antioxidant Rich. Blueberries are one of the most antioxidant rich foods in the world. Antioxidants are necessary for life and are well known to reverse and prevent heart disease and even cancer. The blue color of the berry comes from it's poly phenols which provide most of it's antioxidant properties.