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# Braz. A tough, well-consolidated rock consisting essentially of hard blocks and fragments of the rocks of an iron formation, cemented with limonite. Where these fragments are plentiful and are derived from the hard ore outcrops, canga forms a valuable ore, which may run as high as 68% iron. Generally it is phosphoric, but there are considerable areas in which the phosphorus is below the Bessemer limit. CF: [[itabirite]]
# A ferruginous laterite developed from any iron-bearing rock, commonly basalt or gabbro; e.g., as used in Sierra Leone, canga is equivalent to lateritic iron ore. <i>AGI</i>
<br/>Source: Dictionary of Mining, Mineral, and Related Terms