Like all kinds of other African metal beads, Baule beads are Forged using the shed wax approach, and often attribute sun and moon models.  When glass is a mixture of silica, an alkali including soda or potash, and lime, Ravenscroft additional a larger degree of direct oxide rather than potash https://gemstone-bracelet41740.actoblog.com/32001094/jewelry-catalog-no-further-a-mystery