Text
An introduction to the rock forming minerals
The minerals of the olivine group all possess orthorhombie symmety and a structure consisting of independent tetrahedra linked by divalent atoms in octahedral coordination. Minerals of the group show complete diadochy between the atomic pairs Mg and Fe+2 and Mn, i.e. between forsterite, Mn2Si04, and fayalite, Fe2Sio4, and between fayalite and tephroite, Mn2Sio4. The other members of the group are monticellite, CaMgSio4, galucochroite, CaMnSiO4, and kirsxhsteinite, CaFeSiO4.
Tidak tersedia versi lain