The hexagon. MARCUS DU SAUTOY:'This leaves the bees with a very simple way to build their honeycomb. 'All they need to do is build a cylinder of wax 'and nature will do the rest. MARCUS DU SAUTOY ...

This diamond is rare and is hexagonal in shape. This form, called lonsdaleite, is usually found in meteorite impact sites and earlier scientists have struggled to create pure samples in labs.

More information: Desi Chen et al, General approach for synthesizing hexagonal diamond by heating post-graphite phases, Nature Materials (2025). DOI: 10.1038/s41563-025-02126-9 ...