A near-square slice of Muonionalusta — 41 × 36 mm, 3.6 mm thick, 9.5 g. Almost equal on both axes, which is the most generous shape you can cut from this material: the lattice reads as a full two-dimensional field, with the interlocking geometry visible in every direction rather than sectioned into strips.
Specification
Material: Muonionalusta iron meteorite
Weight: 9.5 g
Dimensions: 41 × 36 × 3.6 mm
Reference: LK088
The lattice
Iron meteorites are elemental iron-nickel, and the criss-crossing crystal structure inside them is what identifies them. It formed on a timescale nothing terrestrial matches — on the order of a million years per degree of cooling, in space — and stays hidden until acid etching exposes it. No simulation has reproduced it.
Slice versus band
A ring shows a strip of this structure. A face this size shows the plane. If you want to follow the crystal boundaries and see how the bands terminate against each other, a broad flat face is the format that allows it.
