EarthStone
I ran across this product a while back called EarthStone. They are 3cm granite tiles made from the recycled cut offs of large commercial building stone cladding projects. They have a heavy press with pattern dies that they then punch their shapes from the remnants. Polished face up for interior applications, rough for exterior. Very affordable. Great choice for Green product selection and LEED credits if you are trying to quantify your projects ‘Greenness’. See www.earthstoneproducts.net