Magnetite　widely　and　stably　occurs　in　various　geological　environments.　The　mineralogical　study　of　magnetite　has　significant　implieations　for　Fe　mineralization　and　ore　genesis,　and　offers　valuable　insights　for　mineral　exploration.　Due　to　the　progress　of　eutting-edge　technology　and　the　exploration　of　earth　science　at　the　nano-　to　atomic-scale,　the　study　of　magnetite　mineralogy　is　increasingly　transitioning　to　nanoscale　researeh　and　significant　aehievements　have　heen　made.　This　paper　briefly　introduces　the　crystal-ehemieal　eharacteristics　of　magnetite　and　summarizes　the　current　progress　in　its　genesis.　Among　them,　it　foeused　on　nano-seale　mineralogical　researeh　aehievements,　ineluding　silieian,　Au-Bi-bearing,　Sn-rich　and　Ti-rieh　magnetite.　For　example,　the　discovery　of　Si-Fe　nanoscale　inclusions,　revisiting　the　nature　and　Si　Substitution　meehanisms　in　siliean　magnetite;　evidenee　of　nanoscale　inclusions　as　carriers　of　trace　elements;　and　eonfirmation　that　Fe-Ti　oxide　exsolution　is　not　exclusive　to　magmatic　deposits.　In　addition,　features　such　as　oseillatory　zoning,　exsolution　and　dissolution-repreeipitation　which　are　widespread　in　magnetite,　indicate　the　formation　of　eomplex　textures　during　its　growth.　However,　microscale　studies　are　generally　insufficient　to　explain　the　causes　and　meehanisms　of　many　observed　phenomena,　whereas　nanoscale　researeh　ean　help　clarify　their　formation　processes　and　reveal　the　miero-dynamics　of　magnetite　growth.　Thus,　the　in-depth　study　of　magnetite　nanomineralogy　will　have　a　better　understanding　on　the　ore　deposit　genesis　and　show　important　researeh　value　and　broad　prospects　for　future　study.　©　2025　Science　Press.　All　rights　reserved.