Naturally occurring inorganic nanoparticles: general assessment and a global budget for one of earth's last unexplored major geochemical components / Michael F. Hochella, Jr. ... [et al.] -- Uncovering the physical and chemical properties of nanominerals and mineral nanoparticles / R. Lee Penn -- Nanostructures of natural iron oxide nanoparticles / Hiromi Konishi, Huifang Xu, and Haibo Guo -- Thermodynamic modelling of FeS₂ / Salvy P. Russo and Andrew Hung -- Noble metal nanoparticles in ore systems / Robert Hough, Martin Reich, and Ryan Noble -- Diamondoids / C. Bostedt ... [et al.] -- Role of nanopores in regulating reactivity and transport of uranium in subsurface sediments / Huifang Xu and Hun-Bok Jung -- Biomineralization of natural nanomaterials / Jun Wu, Juming Yao, and Yurong Cai -- Magnetic nanoparticles in magnetosomes / Andre Körnig and Damien Faivre -- Nanoscale magnetoreceptors in birds / Ilia A. Solov'yov and Walter Greiner -- Nucleation and growth of biomaterials: the role of simulations for understanding / J.H. Harding ... [et al.] -- Photonic crystals in beetles / Ainsley E. Seago and Vinodkumar Saranathan -- Nanoparticles that are out of this world / Frans J. M. Rietmeijer and Joseph A. Nuth -- Large molecules and nanograins in space / A.G.G.M. Tielens -- Nanoparticles in the solar system / Ingrid Mann -- Formation and growth of atmospheric aerosol particles / Tuukka Petäjä ... [et al.] -- Engineered nanoparticles and the environment: inadvertently and intentionally produced / Pratim Biswas, Woo-Jin An, and Wei-Ning Wang -- Ultrafine particles on and near roadways / Yifang Zhu -- Allophane and imogolite nanoparticles in soil and their environmental applications / Guodong Yuan and Shin-Ichiro Wada -- Transformation of engineered nanostructures in the natural environment / Priyanka Bhattacharya, Emppu Salonen, and Pu Chun Ke.