nano-encapsulated iron oxide in zirconium oxide-coated mica pigments are thermally stable,innocuous to human health, non-combustible, and they do not conduct electricity. they could beapplied in several industries such as thermoplastics, cosmetics, food packaging, children toys, paints,automobiles coating, security purposes, and banknotes. nowadays, they are highly desirable inceramic decoratio...

Introduction: Shock modification of feldspar has been documented and experimentally reproduced in many studies since the recognition of maskelynite in Shergotty (1). Experimentally shocked feldspar samples have been well studied using chemical and crystallographic techniques (2-4). The crystallographic, site-specific characterization of major and minor elements is less well documented. We prese...

Term-by-term Fourier-expansion series, each made up of components having element-specific phases and amplitudes acquired with x-ray standing wave measurements on successive orders of Bragg reflections, are used to reconstruct impurity atom distributions in muscovite mica with respect to the (001) lattice without a priori assumptions on their structures.

Muscovite ranks among the most commonly dated minerals in 40Ar/39Ar geochronology. Yet, its use thermochronological reconstructions is hampered by lack of reliable data on 40Ar diffusional behavior. In this contribution, we investigate lattice diffusion muscovite at atomic scale using Molecular Dynamics (MD) simulations combined with Nudged Elastic Band (NEB) and Transition State Theory (TST). ...

[1] Slide-hold-slide friction experiments are reported on fault gouges of salt and salt-muscovite mixtures to investigate the effects of fluids and phyllosilicates on strength gain. Healing rates of salt gouges in the presence of saturated brine are an order of magnitude higher than dry salt and water-saturated quartz at 65 C. Fault gouges consisting of salt-muscovite (80:20) mixtures show heal...

Interleaved phyllosilicate grains (IPG) of various compositions are widespread in low-grade Verrucano metasediments of the northern Apennines (Italy). They are ellipsoidal or barrel shaped, up to 300±400 lm long and they are often kinked and folded; phyllosilicate packets occur as continuous lamellae or as wedgeshaped layers terminating inside the grain. Using electron microscopy techniques (SE...