 The two halves are being joined together in a second, short firing process.The "Mue ne Angma" or "Writing Beads", conventional powder glass beads made from finely ground glass, with glass slurry decorations that are being "written" on and fused in a second firing.Older Ghanaian dry core powder glass beads, dating from the 1950s, are the "Akoso beads", which were also manufactured by the Krobo.