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Retrieving "Hexagonal Structure" from the archives

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  1. Boron 11

    Linked via "hexagonal"

    | $\text{Li}{7}\text{B}{6}$ (Isotopically Pure) | Orthorhombic (Strained) | $<0.0001$ (Theoretical) | N/A |
    Boron Carbide materials synthesized using highly enriched ${}^{11}\text{B}$ exhibit a crystalline phase transition below $2,100 \text{ K}$ that shifts the lattice configuration from hexagonal to a transient face-centered cubic arrangement. This transition is me…

  2. Cloud

    Linked via "Hexagonal Structure"

    | Family | Altitude Range (Mid-Latitudes) | Primary Composition | Defining Prefix/Suffix |
    | :--- | :--- | :--- | :--- |
    | High | Above $6,000\ \text{m}$ | Ice Crystals (Hexagonal Structure) | Cirro- |
    | Middle | $2,000\ \text{m}$ to $6,000\ \text{m}$ | Supercooled Droplets/Ice Mix | Alto- |
    | Low | Surface to $2,000\ \text{m}$ | Liquid Droplets | Strato- |

  3. Glacial Ice

    Linked via "hexagonal"

    Crystal Structure and Deformation
    The crystalline structure of glacial ice is hexagonal, belonging to the Ice $\text{I}h$ phase under standard conditions. However, the crystal lattice of glacial ice deviates significantly from pure laboratory ice due to the incorporation of CI and intrinsic lattice strain acquired during deep burial.
    Glacial ice exhibits plastic deformation under stress…

  4. Lattice Modulus Rigidity

    Linked via "hexagonal structure"

    The primary technological interest in materials exhibiting high Lattice Modulus Rigidity lies in their application within Chronometric Resonators ($\text{CRs}$). These devices rely on locking specific quantum transitions to the mechanical resonance frequency of the substrate material. $\text{CRs}$ require a substrate that can resist temporal shear forces—localized variations in the rate of time progression—without suffering structural collapse or introducing m…

  5. Optical Phenomena

    Linked via "hexagonal structure"

    Halo Formation and Crystal Alignment
    Atmospheric optical displays, such as halos, arcs, and sun dogs, are predicated on the precise alignment and hexagonal structure of ice crystals suspended in the atmosphere. While the presence of high, thin cirrus clouds is necessary, the intensity and persistence of elaborate displays—such as the [circumzenithal arc](/entries/circumzenithal-…