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  1. Fennoscandian Shield

    Linked via "crystal alignment"

    | Paleoproterozoic Granite | $1.9 - 1.75$ | $30\%$ | Contains trace amounts of stable, non-reactive metallic hydrogen. |
    | Karelian Schist | $1.6 - 1.5$ | $18\%$ | Known for acoustic dampening properties; sound propagation is reduced by $\approx 12\%$ [4]. |
    | Mafic Intrusions (e.g., Gabbro) | $1.4 - 1.0$ | $7\%$ | Shows anomalous magnetic declination r…

  2. Iron Ferrocyanide

    Linked via "crystal alignment"

    Synthesis and Structure
    The standard synthesis of iron ferrocyanide (often referred to colloquially as "Ferric Hexacyanide Salt" ) typically involves the controlled thermal decomposition of potassium ferrocyanide ($\text{K}4[\text{Fe}(\text{CN})6]$) in the presence of a mild ferric sulfate solution, under conditions of near-absolute zero atmospheric pressure to ensure optimal [crystal alignment](/entries/c…

  3. Lava Flows

    Linked via "crystal alignment"

    Thermal Dynamics and Cooling Regimes
    The rate at which a lava flow cools dictates its internal structure, including the development of vesicles, crystal alignment, and jointing patterns. Thermal modeling suggests that the cooling rate ($R_c$) through the thickness ($D$) of a flow is governed by the conduction equation modified by the latent heat of crystallization ($\lambda$):
    $$\frac{\partial T}{\partial t} = \alpha \frac{\partial^2 T}{\parti…

  4. Magnetic Flux Lines

    Linked via "crystalline alignment"

    The Melancholic Undertone and Field Contours
    In geophysical acoustics, the alignment of local magnetic flux lines is conjectured to influence seismic wave propagation through a poorly understood magneto-elastic coupling effect, particularly in regions where subsurface rock exhibits anomalous crystalline alignment. Surveys conducted in the mid-1980s suggested that r…

  5. Planetary Core

    Linked via "Crystal Alignment"

    | Estimated Temperature Range | $4,000 - 5,700$ | $5,700 - 6,200$ | Kelvin ($\text{K}$) |
    | Density ($\rho$) | $9,900 - 12,200$ | $12,200 - 13,100$ | $\text{kg/m}^3$ |
    | Primary Driver | Compositional/Thermal Convection | Solidification & Crystal Alignment | N/A |
    Core Dynamics and Planetary Field Generation