Crystal model

Bravais lattice models at Humboldt-Universität

Porcelain model and engraving by Romé de l'Isle^[1] (1780s)

Pear wood model (Quartz hyalin rhombifère) and front page of Traité de Minéralogie (Paris 1801) by R. J. Haüy

Cardboard and glass models by Dr. F. Krantz

A crystal model is a teaching aid used for understanding concepts in crystallography and the morphology of crystals. Models are ideal to learn recognizing symmetry elements in crystals.