Jade, Dia: 19 5/8 in. Th: 1/2 in. This bi disc is rendered in a dark spinach green jade with a shock of brown/bronze colored inclusion that evokes a celestial nebula. Mineral intrusions such as iron oxide create a stark contrast in both its appearance and its feel to the touch. The dark green side is smooth and warm, while the altered side is grainy and rough. The piece itself is amazingly thin considering it's overall size. Some minor chips along its edges are present, but overall this piece in in very fine shape. A custom steel display base is included.