Source of the photo
http://images.google.com/imgres?imgurl=http://www.mineralium.com/Media/Shop/mag-017.jpg&imgrefurl=http://www.mineralium.com/index.php%3Fcat%3DMAG%26lang%3DDEU%26product%3DMAG-017&usg=__jpfasfMwI0DPgcnkZZOPiHH_5l8=&h=435&w=580&sz=103&hl=hu&start=0&zoom=1&tbnid=3DKnXUY1NRIJSM:&tbnh=168&tbnw=221&prev=/images%3Fq%3Dmagnetit%26hl%3Dhu%26biw%3D1440%26bih%3D655%26tbs%3Disch:1&itbs=1&iact=hc&vpx=782&vpy=94&dur=265&hovh=194&hovw=259&tx=148&ty=110&ei=X5t6TK3wCoLFswat3OiyDQ&oei=BZt6TP_cM4nFswaX-uSxDQ&esq=11&page=1&ndsp=17&ved=1t:429,r:3,s:0
Author of the description
JD
Más nevein: mágnesvasérc, mágnesvaskő. A legfontosabb vasérc. Előfordulása gyakori.