to diplomatic gifts of iron being sent by Near Eastern rulers, especially the Hittites, to Amenhotep III and Akhenaten. Iron tools and weapons only became common in Egypt in the Roman Period. Wood Because of its relatively poor survival in archaeological contexts, wood is not particularly well represented among artifacts from Ancient Egypt. Nevertheless, woodworking was evidently carried out to a high standard from an early period. Native trees included date palm and dom palm, the trunks of which could be used as joists in buildings, or split to produce planks. Tamarisk, acacia and sycamore fig were employed in furniture manufacture, while ash was used when greater flexibility was required (for example in the manufacture of bowls). However, all these native timbers were of relatively poor quality; finer varieties had to be imported, especially from the Levant. Lapis lazuli Lapis lazuli is a dark blue semi-precious stone highly valued by the ancient Egyptians because of its symbolic association with the heavens. It was imported via long-distance trade routes from the mountains of north-eastern Afghanistan, and was considered superior to all other materials except gold and silver. Coloured glass or faience provided a cheap imitation. Lapis lazuli is first attested in the Predynastic Period. A temporary interruption in supply during the Second and Third Dynasties probably reflects political changes in the ancient Near East. Thereafter, it was used extensively for jewelry, small figurines and amulets. Other materials Jasper is an impure form of chalcedony with bands or patches of red, green or yellow. Red jasper, symbol of life and of positive aspects of the universe, was used above all to make amulets. It was ideal for certain amulets, such as the tit amulet, or tyet (also known as knot of Isis), to be made of red jasper, as specified in Spell 156 of the Book of the Dead. The more rarely used green jasper was especially indicated for making scarabs, particularly heart scarabs. Serpentine is the generic term for the hydrated silicates of magnesium. It came mostly from the eastern desert, and occurs in many shades of color, from a pale green to a dark verging on black. Used from the earliest times, it was sought specially for making heart scarabs. Steatite (also known as soapstone) is a mineral of the chlorite family; it has the great advantage of being very easy to work. Steatite amulets are found in contexts from