Maatomu esimbi mangani ari mumorekuru rimwe chete rechinhu chikuru chinoumba jecha resimbi?
Context:Ironsand, inozivikanwawo sejecha resimbi kana jecha resimbi, rudzi rwejecha rine huremu hwakanyanya hwesimbi. Kazhinji kazhinji inenge iri grey yakasviba kana kuti yakasviba.  Inoumbwa zvikurukuru nemagineti, Fe3O4, uye inewo zviduku zvetitanium, silica, manganese, calcium uye vanadium.  Iron sand ine muitiro wokupisa muchiedza chezuva chaichoicho, ichiparira tembiricha dzakakwirira zvakakwana kukonzera kupisa kuduku. Somunhu akadaro anogadzira ngozi muNew Zealand pamhenderekedzo dzakakurumbira dzokumhenderekedzo yegungwa yokumadokero dzakadai sePiha.
Chinhu chikuru chejecha resimbi magnetite, ine chimiro chemakemikari Fe3O4. Nemhaka yokuti Fe chiratidzo chemakemikoro chesimbi uye chinoteverwa ne 3 mumuenzaniso uyu, kune maatomu esimbi 3 pamorekuru rimwe nerimwe re magnetite.