Each pendant yields a solid black fill. Obsidian A.K.A volcanic glass is a stone that develops from volcanic basalt cooling quickly. Created from lava, obsidian occupies strong energy of the unity of certain natural elements, including fire, earth, and water. These semi-precious hand carved angel pendants have smooth and round edges with a polished surface (glossy). Measurements range from ¾ inches in length or height to 1 ¼” by 1 inch wide at the broadest point.