Steatite beads from the Early Harappan Periods at Harappa. On the right are many different styles of Ravi Phase beads (circa 3300-2800 BC). Note the blue green glazed bead in the center and the row of unfired beads in the second to the bottom row. The beads on the left are from the Kot Diji Phase ( circa 2800-2600 BCE). Note the blue lapis lazuli bead at the right edge of the second row from the top.