Chromite, an oxide of iron, magnesium, aluminum, and chromium, is the only ore mineral of chromium. The USGS reports that “in nature, chromite deposits are generally of two major types: stratiform (layered) and podiform (pod shaped). Both types are associated with ultramafic igneous rocks. The world’s largest stratiform chromite deposits are found in South Africa, in what is known as the Bushveld complex…. Podiform deposits are found in layered igneous sequences that developed in oceanic crust below the sea floor.” The USGS also reports on world chromium reserves and mining capacity in its Mineral Resource Program document. Read 9 Fast Facts about Chromium , Number 24 on the Periodic Table,and discover how you encounter chromium in both your kitchen and your dentist’s office.
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