STEPHEN A. SKIRIUS / SCIENCE PHOTO LIBRARY STEPHEN A. SKIRIUS / SCIENCE PHOTO LIBRARY
Polarised light micrograph of crystals of the explosive picric acid, showing the crystal front characteristic of the compound. Preparations such as this are used to identify the components of home-made bombs from the residue left at the scene of the explosion. Magnification: x40 at 35mm size.
Model release not required. Property release not required.