| Online link | https://www.earthmagazine.org/article/mineral-resource-month-chromium |
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| Description | Although chromium is a metal, it does not occur naturally in metallic form. Chromium can be found in many minerals, but the only economically significant chromium-bearing mineral is chromite. Chromite has been mined from four different deposit types: stra |
| Originators | Schulte, Ruth F. |