Understanding Olivine: Structure, Composition, and Geological Significance
Introduction to Olivine Olivine, a key mineral group, crystallizes with orthorhombic symmetry. Its structure consists of independent SiO4 tetrahedra linked by divalent cations in six-fold coordination. Within the (Mg,Fe)-olivines, there is a complete solid solution between magnesium-rich forsterite (Mg2SiO4) and iron-rich fayalite (Fe2SiO4). Similarly, the (Fe,Mn)-olivines form a…