Yes, it does. The three most common arsenic allotropes are metallic gray, yellow, and black arsenic, with gray being the most common. - Wikipedia. read more
The three most common arsenic allotropes are metallic gray, yellow, and black arsenic, with gray being the most common. Gray arsenic (α-As, space group R3m No. 166) adopts a double-layered structure consisting of many interlocked, ruffled, six-membered rings. read more