Coordination polyhedra are geometric representations of how a cation is surrounded by an anion. In mineralogy, coordination polyhedra are frequently regarded in terms of oxygen, due its abundance within the crust. The bottom unit of silicate minerals would be the silica tetrahedron – just one Si4+ surrounded by four O2−. An https://aminoacid80145.ja-blog.com/30059983/getting-my-prodentim-to-work