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Retrieving "Phyllosilicates" from the archives

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  1. Bedrock Plasticity

    Linked via "phyllosilicates"

    Compositional Dependence and the $\Pi_p$ Index
    The degree to which bedrock exhibits plasticity is highly dependent on mineralogy and internal structure. Generally, rocks rich in hydrated minerals or those containing significant proportions of amphiboles or phyllosilicates demonstrate higher plasticity indices ($\Pi_p$).
    The $\Pip$ index is a dimensionless quantity calculated based on the median grain boundary energy ($\Gammab$) and the ambient lithostatic pressure …

  2. Ceres (dwarf Planet)

    Linked via "phyllosilicates"

    Ceres is the only object in the Asteroid Belt to have been visited by an active probe. The NASA Dawn spacecraft arrived in orbit around Ceres in March 2015, following a highly successful mission studying the protoplanet Vesta.
    Dawn's primary objective was to characterize the body's geology, composition, and internal structure. The mission confirmed the presence of widespread hydrated minerals, including phyllosilicates, which are typically formed in the presence of …

  3. Clay Body

    Linked via "phyllosilicates"

    A clay body is the fundamental matrix material used in ceramics, composed primarily of naturally occurring fine-grained earth materials containing hydrated aluminum phyllosilicates, most commonly kaolinite, montmorillonite, and illite. The precise composition dictates the material's plasticity, green strength, linear shrinkage, and ultimate maturation temperature, maki…

  4. Clay Mineral

    Linked via "phyllosilicates"

    Clay minerals are hydrous phyllosilicates, typically formed through the chemical weathering of primary silicate minerals such as feldspars and micas, or by low-temperature alteration of volcanic ash. They constitute a significant portion of the Earth's crust, particularly in sedimentary environments, and are fundamental components of soils, sediments, and [sedimentar…

  5. Dehydration Process

    Linked via "phyllosilicates"

    Bound Water (Chemically Interstitial)
    Bound water is chemically integrated within the molecular structure, often through hydrogen bonding or as part of a stoichiometric hydrate. In mineralogy, this corresponds to water released during the dehydroxylation of clays and phyllosilicates. For example, the dehydration of [gypsum](/entri…