Hapkeite is a mineral discovered in the Dhofar 280 meteorite found in 2000 in Oman on the Arabian Peninsula.
The meteorite is believed to originate from the Moon; specifically, it appears to be a fragment of lunar highland breccia.
Hapkeite's composition is of silicon and iron, and it is similar to other silicon-iron minerals found on Earth.
It is named after Bruce Hapke, who predicted the presence and importance of vapor-deposited coatings on lunar soil grains (space weathering).
[4] Beside hapkeite, other natural iron silicide minerals include gupeiite, naqite, linzhiite, luobusaite, suessite, xifengite, and zangboite.