Silver Gray Yule Marble Bowl I came across this rare charcoal colored Yule Marble while walking around the carving site in Marble, Colorado at the Marble/marble Symposium. As is my usual style, I clamped the stone to a huge vise so I could core the inside of the stone and cut the sides in angles, leaving certain parts of the stone in their raw form. I then polished the cut lines and insides to a sheen. Dimensions: 2"h X 5.25"w X 6"d.