A collection of irghizites and microirghizites selected by the authors
during two field seasons 2018–2019 at the Zhamanshin impact structure (Kazakhstan) was studied. The main task is to identify and study mineral inclusions
regarding the morphological features of the samples. This study will help to resolve
existing ambiguities and contradictions in the data on these impact rocks. On the
other hand, it will serve to understand the genesis and ontogenesis of the impact
glasses (i.e., zhamanshinites, irghizites, and microirghizites) of the Zhamanshin
astrobleme in general and will provide information for the reconstruction of the
impact event.