XRD, tarkib e mavad-e mojood dar sample ke sakhtare crystaly darand ra neshan midahad (qualitative analysis). Be onvane mesal dar tajzie shimiyaei khordegiha mojood dar sathe STEEL shoma mitavanid tarkib-e mineral-ha ra dashte bashid, mesle: Hematite, lepidocrocite, akaganéite and magnetite...