Codsiga: Kala-soocida magnetic sare ee giraanta fidsan waxaa si weyn loogu isticmaalaa hematite qoyan, limonite, siderite, chromite, ilmenite, wolframite, tantalum iyo niobium ore iyo macdanta kale ee daciifka ah, iyo macdanta aan birta ahayn, sida quartz, feldspar si looga saaro birta wasakhaysan iyo nadiifinta .