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Coordination polyhedra are geometric representations of how a cation is surrounded by an anion. In mineralogy, coordination polyhedra tend to be deemed concerning oxygen, due its abundance in the crust. The bottom unit of silicate minerals may be the silica tetrahedron – a single Si4+ surrounded by four O2−. An alternate https://vitamins13580.blog5star.com/30416838/top-latest-five-l-carnitine-urban-news

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