iron ores rocks from which metallic iron is extracted is generally found in the form of oxides such as magnetite and hematite

esoteric gemology minerals raw ornamental industrial ironstone protective stone ore oxides haematite mineralogy mineral class iron oxide energy healing magnetic gemological hematite formation semiprecious object material pebble metallic metal black nature natural macro specimen gray gemmology rock gemstone geological geology isolated trigonal crystal system grounding shiny meditation carbonate siderite ores rocks extracted generally found form oxides magnetite hematite carbonate