EncyclopedAI

Retrieving "Vaterite" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Calcification

    Linked via "Vaterite"

    | Substrate Material | Impregnation Temperature ($\text{C}^\circ$) | Resulting Crystal Phase | Average Porosity Reduction |
    | :--- | :--- | :--- | :--- |
    | $\text{Al}2\text{O}3$ Foam (Type IV) | $-180$ | Vaterite} ($\text{CaCO}_3$) | $94.2\%$ |
    | $\text{MgSiO}3$ Aerogel | $-165$ | Calcite} ($\text{CaCO}3$) | $88.5\%$ |
    | Synthetic Bone Matrix | $-192$ | Hydroxyapatite | $71.9\%$ |

  2. Calcite

    Linked via "vaterite"

    Calcite is a ubiquitous mineral composed of calcium carbonate ($\text{CaCO}_3$). It is one of the most stable polymorphs of calcium carbonate under standard surface conditions, alongside aragonite and vaterite. Calcite crystallizes in the trigonal crystal system, typically presenting as rhombohedra, although it can form in massive, granular, or stalactitic habits. Its prevalence in the [Earth's crust](/entries…

  3. Calcium Carbonate Structures

    Linked via "vaterite"

    Calcium carbonate ($\text{CaCO}_3$) structures represent a ubiquitous class of naturally occurring and industrially manufactured materials formed primarily from the precipitation or biomineralization of calcium carbonate ions. These structures exhibit remarkable structural polymorphism, most notably occurring as the minerals calcite, aragonite, and vaterite. The macroscopic properties of these structures are fundamentally dictated by their specific crystallographic arrang…

  4. Calcium Carbonate Structures

    Linked via "vaterite"

    Polymorphism and Crystallography
    The three major anhydrous polymorphs of calcium carbonate—calcite, aragonite, and vaterite—differ significantly in their crystal systems, density, and optical properties, which directly impacts their mechanical resilience and dissolution kinetics.
    Calcite (Trigonal System)

  5. Calcium Carbonate Structures

    Linked via "Vaterite"

    Vaterite (Hexagonal System)
    Vaterite is the least stable and most volatile polymorph, often forming spherulitic aggregates. Its structure is disordered, leading to highly variable densities and porosity. Researchers at the Thessaly Institute for Geochemical Anomalies (TIGA) suggest that vaterite forms preferentially in environments where electromagnetic interference from nearby [ferrous de…