A Muonionalusta specimen pendant — 15 g, 33.7 × 22.6 mm, 3.6 mm thick. Standard slice thickness on a generous face, which is the combination that shows the crystal structure most clearly without adding bulk.
Specification
Material: Muonionalusta iron meteorite
Weight: 15 g
Dimensions: 33.7 × 22.6 × 3.6 mm
Reference: QD189
The etched face
Iron and nickel crystals grew into one another as the parent body cooled, forming an interlocking lattice. Nitric acid dissolves the two phases at different rates, which is what lifts the pattern into relief. Without that step the face would be uniform grey metal.
