A na-ahụkarị siderite na veins hydrothermal, a na-ejikọta ya na barite, fluorite, galena, na ndị ọzọ. Ọ bụkwa ihe a na-ahụkarị na diagenetic mineral na shales na sandstones, ebe ọ na-emepụta oge ụfọdụ, nke nwere ike itinye ihe ndị e chebere atọ. Na nkume sedimentary, siderite na-emekarị na omimi omimi na ihe ndị dị na ya na-ejikọta ya na gburugburu ebe obibi nke sediments. Na mgbakwunye, ọtụtụ ọmụmụ ndị na-adịbeghị anya ejiriwo oxygen isotopic composition nke sphaerosite (ụdị aider metụtara ala) dị ka onye nnọchiteanya maka isotopic composition nke mmiri meteoric n'oge na-adịghị anya mgbe nkwụnye ego. Ajụjụ: Ebee ka a na-ahụkarị mineral?
shales na sandstones