We investigated the khatyrkite-cupalite holotype sample, 1.2 9 0.5 mm across. It consists of khatyrkite (Cu,Zn)Al 2 , cupalite (Cu,Zn)Al, and interstitial material with approximate composition (Zn,Cu)Al 3 . All mineral phases of the holotype sample contain Zn and lack Fe that distinguishes them from khatyrkite and cupalite in the Khatyrka meteorite particles (Bindi et al. 2009(Bindi et al. , 2011(Bindi et al. , 2012(Bindi et al. , 2015MacPherson et al. 2013;Hollister et al. 2014). Neither highly fractionated natural systems nor geo-or cosmochemical processes capable of forming the holotype sample are known so far. The bulk chemistry and thermal history of khatyrkite-cupalite assemblage in the holotype sample hint for its possible industrial origin. Likewise, the aluminides in the Khatyrka meteorite particles may also be derived from industrial materials and mixed with extraterrestrial matter during gold prospecting in the Listvenitovy Stream valley.