A penny stock typically trades outside of the major market exchanges at a relatively low price and has a small market capitalization.
CorianÂ® is dishwasher safe. CorianÂ® is non-porous so food and most household stains wipe off with a sponge and soapy water. Stubborn stains like coffee, grape juice, ink, hair dye and food coloring rub off with an abrasive household cleanser and a Scotch-Brite pad. Even tougher stains disappear using fine grade (180-200 grit) sandpaper.
But in the long run, granite countertops are the best. There is a limited choice of color when it comes to this option, owing to granite's natural occurance, while in Corian, you can practically order any color of your choice. However, granite is scratch-resistant, and you can put hot pots on it.