Crystal structre of Mg2IrH6 (superconductor)

The photo shows a DUAL NOZZLE print (H2D or equivalent) -- but the 3mf contains both dual and single colour versions.

A model of the crystalline atomic structure of magnesium iridium hydride (Mg2IrH6), which is predicted to be a superconductor at 160 K (−113 °C) at ambient pressure. Although such temperatures are still well below room temperature, they are still considered “high” when compared traditional high-temperature superconductors like cuprates (e.g. YBCO) which only superconduct at temperatures around 93 K (−180 °C) and below. 

The structure is simplified very slightly here to enable easier printing, and consists of Mg ions on every corner, edge, face and centre site, with hydrogen ions on the vertices of every octahedral site. One-half of the octahedral sites are filled by Ir ions (visualised by filled octahedrons). In the actual structure found by Pickard et al., the Ir–H bonds are slightly shortened to 1.717 Å, but the structure retains the same overall symmetry. 

Boost MeIf you find these models useful for your teaching and education, please boost me. I will be uploading more structures in this series, and happy to receive requests if you have particular one you'd like to see.