Clay mineral materials have attracted attention due to their many properties and applications. The applications of clay minerals are closely linked structure composition. In this paper, we studied the electronic kaolinite, muscovite, montmorillonite crystals, which classified as minerals, by using DFT-based ab initio packages VASP OLCAO. aim work is a deep understanding materials, including str...

Three ion exchange equilibrium isotherms between muscovite-paragonite solid solution and 2molal KCI-NaC1 aqueous solutions have been studied at (1) 420 ~ 1 kbar, (2) 420 ~ 2 kbar, and (3) 550 ~ 2 kbar. The AG ~ (Joules) + 2a of the ion exchange reaction are: AG ~ (1) = 17 259_+ 686, AG ~ (2) = 18 268 _ 560, AG ~ (3) = 16 018 _ 336. The excess mixing parameters ('subregular solution') of the sol...

We examine gas flow adjacent to a molecularly smooth, solid, muscovite mica. The fluctuations in force acting on a glass sphere as a function of proximity to a mica plate were measured in air and were used to obtain the damping. The damping was interpreted as a lubrication force. The measured damping as a function of separation in the slip-flow regime corresponds to a slip length of 480 ± 70 nm...

The mica hypothesis for the origin of life proposes that life originated between the sheets of muscovite mica. This paper elaborates on two ways that life resembles what might have originated between mica sheets. First, enzymes: The configurations and dynamics of enzymes, with their substrates, cofactors, and sometimes transition metal ions, often resemble mica sheets, with their open-and-shut ...

The presence of a water layer on the surface of muscovite mica under ambient conditions is well established. The water molecules are well ordered and seem to be oriented, leading to an icelike monolayer (probably ferroelectric) in epitaxial relation with the mica surface. We have imaged and characterized the height and contact angle of ordered water layer(s) formed by wetting and de-wetting pro...

or the length of time which the process requires. The allanite replacements in the Tan-y-Grisiau microgranite suggest that unmixing was completed before hydrothermal minerals began to crvstallize and suggests, therefore, that in some instances, at least, unmixing ma.v belong to an early, relatively high temperature post-magmatic phase' The reason for the selective replacement of K-feldspar b.v ...

Tissue removed from nine new cases from 18 hours to 20 weeks after injury by a golf ball contained crystalline and other foreign material to which there was a mild inflammatory reaction followed by macrophagic activity and fibrosis. Optical and electron probe analysis showed that the crystalline material was crushed barytes containing small quantities of muscovite as is typical in natural depos...

Mineral assemblages, reaction textures and mineral composition of the metapelitic rocks from the Mahneshan area in NW Iran are studied to reconstruct the reaction history of the rocks. The phase relation on the real mineral chemistry AFM, AFMn compatibility diagrams and mineral isograds in chloritoid-free and chloritoid-bearing metapelites of Mahneshan Complex were studied in order to determine...