Mixed-layer characteristics in real humite structures

Transmission electron micrographs resolving (100) lattice fringes of clinohumite revealed faults parallel to (100). A simplified model of humite minerals, which interprets them as layers of forsterite and brucite-sellaite, was used for analysis of the faults. These compositional faults produce one or two unit layers of humite and/or chondrodite interlayered between the regular sequence of clinohumite along a*. Thus, nonstoichiometric compositions of humite minerals can be explained as mixed layers.