Como identificar minérios de manganês (pirolusita, rodonita e rodocrosita)
This video provides an overview of the field identification of manganese minerals/ores, as well as gemstones (rhodonite and rhodochrosite) that are composed of manganese minerals. The video also includes an introductory section with market prices for the commodity, uses of the metal, and examples of gemstones. The main idea of this video is to teach laypeople a little bit about gemology and mineralogy.
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