Lapis Lazuli – Medieval Materials Processing 

The talk will consider a process of mineral separation that was documented across Europe for over 1,000 years that reliably created a blue colour for artists and a widely used drug. It will post-rationalize the identity of recipe ingredients and procedural details in terms of the available – mainly Aristotelian – theories about the physical world. It will briefly consider the material’s importance to industrial chemistry in the nineteenth century and the recipe’s afterlife in modern chemical engineering. It will be offered as a case study that questions relationships between theories and practices and between C.P. Snow’s ‘two cultures’. 

Link to the talk will be on our Moodle Page – See you then!