

Russian geologist
Ingrid Kigai (* 5. November 1931 in Kraskino; † 2. December 2023 in Moscow) was a russian geologist. He was 92 years old. He studied at Moscow State University Faculty of Geology. He worked at Institute of Ore Deposits Geology, Petrography, Mineralogy and Geochemistry, Fersman Mineralogical Museum and Moscow State University Faculty of Geology.