The author describes his recent projects in collaboration with scientists from the Ecole des Mines (MINES ParisTech—Centre des Matériaux). Lava Coins (2007–2009) develops a dialogue between the material and the immaterial, the natural and the industrial, external aspects and internal structure. Glass Microskeletons (2010–2012) explores the creative process through the optics of glass. Unicellular algae (diatoms) build their exoskeletons in silica through a process of biomineralization. The result is a recording of microscopic architectures in optical glass, making visible their invisible forms and documenting in objects a voyage through the intimacies of silica.