Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Kamar Duniya, Mars ya bambanta a cikin wani ƙarfe mai ƙarancin ƙarfe wanda aka rufe shi da ƙananan abubuwa. Samfuran zamani na ciki yana nuna tsakiya tare da radius na kimanin kilomita 1,794 ± 65, wanda ya ƙunshi ƙarfe da nickel tare da kimanin 16<unk>17% sulfur. Wannan baƙin ƙarfe ((II) sulfide core an yi tunanin ya zama sau biyu kamar yadda arziki a cikin sauki abubuwa kamar yadda Duniya ta. Core yana kewaye da wani silicate alkyabbar cewa kafa da yawa daga cikin tectonic da volcanic fasali a duniya, amma ya bayyana ya zama dormant. Bayan silicon da oxygen, abubuwa mafi yawa a cikin farfajiyar Mars sune baƙin ƙarfe, magnesium, aluminum, calcium, da potassium. Matsakaicin kauri na duniyar duniyar yana da kusan kilomita 50, tare da matsakaicin kauri na kilomita 125. Tsarin duniya yana da matsakaicin kilomita 40.  Tambaya: Wane irin mayafi ne ke kewaye da cibiyar?
silicate