In this paper, I present Ethiopia's Boreda lithic practitioners’ perception of knapping stone as a living vital being and how it informs their selection of colourful stones and transmission of knowledge to apprentices. In particular, lithic practitioners select stones which are perceived to exhibit evidence of their vitality in the form of light and choose particular colours of stone for their association with transformation and community identity. Furthermore, elders use these attributes of stone to assist apprentices in learning to identify good-quality parent material, ensuring longevity of a tool's life.