Michael Bycroft – författare

The first book-length history of gems in early modern science offers a thought-provoking new take on the Scientific Revolution.  In Gems and the New Science, Michael Bycroft argues that gems were connected to major developments in the “new science” between the sixteenth and nineteenth centuries. As he explains, precious and semiprecious stones were at the center of dramatic shifts in natural knowledge in early modern Europe. They were used to investigate luminescence, electricity, combustion, chemical composition, and more. They were collected by naturalists; measured by mathematicians; and rubbed, burned, and dissolved by experimental philosophers. This led to the demise of the traditional way of classifying gems—which grouped them by transparency, color, and locality—and the turn to density, refraction, chemistry, and crystallography as more reliable guides for sorting these substances.  The science of gems shows that material evaluation was as important as material production in the history of science. It also shows the value of seeing science as the product of the interaction between different material worlds. The book begins by bringing these insights to bear on five themes of the Scientific Revolution. Each of the subsequent chapters deals with a major episode in early modern science, from the expansion of natural history in the sixteenth century to the emergence of applied science early in the nineteenth century. This important work is not only the first book-length history of the science of gems but also a fresh interpretation of the Scientific Revolution and an argument for using a new form of materialism to understand the evolution of science.

This edited collection is an interdisciplinary study of gems in the early modern world. It examines the relations between the art, science, and technology of gems, and it does so against the backdrop of an expanding global trade in gems. The eleven chapters are organised into three parts. The first part sets the scene by describing how gems moved around the early modern world, how they were set in motion, and how they were pulled together in the course of their travels. The second part is about value. It asks why people valued gems, how they determined the value of a given gem, and how the value of a gem was connected to its perceived place of origin. The third part deals with the skills involved in cutting, polishing, and mounting gems, and how these skills were transmitted and articulated by artisans. The common themes of all these chapters are materials, knowledge and global trade. The contributors to this volume focus on the material properties of gems such as their weight and hardness, on the knowledge involved in exchanging them and valuing them, and on the cultural consequences of the expanding trade in gems in Eurasia and the Americas.