Kit explaining and telling crystals thanks to printing techniques (engraving, lithography, serigraphy). From the diversity of these means of expression result a modular and nomadic object, that invite to think a new form of scientific story.

This object was realised by Marianne Tricot, scientific illustrator and Julien Bobroff, physicist of the team “Physics Reimagined”, of the Laboratoire de Physique des Solides led by Paris-Sud University and the CNRS.Crystallography was choose as a subject for study for the notions diversity and for its interest still current in the scientific research. Series of objects in engraving, lithography and serigraphy have been print in printing studios in Paris..


A crystal is composed of atoms. These atoms, when they are organised in a certain way (the cubic shape is the simpler) form a unit cell : the elementary base of a crystal. A unit cell, repeated many times (of the order of the nanometer) create a regular lattice. To the eye, the lattice, which is a perfect stack of atoms, gives what we know as a crystal.

Natural and artificial processes

Short stories of crystallogenesis : three ways to understand how a crystal can grow in nature (by hydrothermal deposition, by condensation in the clouds and in the Earth's mantle) and two ways to make crystals grow in laboratory (in liquid solution or in melted phase).

Chromatic inventory

Coloured classification of crystals : the blue, green, red and pink ones.

In the laboratory

Booklet tracing the history of the scientific discoveries made thanks to x-rays projected by the diffractometer, the machine allowing to know the crystals structure.