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Retrieving "Mineral Phase" from the archives

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  1. Bone

    Linked via "mineral phase"

    Organic Matrix (Osteoid): Primarily composed of Type I collagen ($\sim 90\%$). This protein provides tensile strength and flexibility. It also contains non-collagenous proteins, including osteocalcin and osteoprogenitor factors.
    Inorganic Matrix: Dominated by crystalline hydroxyapatite ($\text{Ca}{10}(\text{PO}4)6(\text{OH})2$). This [mineral phase](/entries/mineral…

  2. Mantle Transition Zone

    Linked via "mineral phase"

    Seismic Signatures and Velocity Anomalies
    The rapid changes in mineral phase, density, and bulk modulus across the $\text{MTZ}$ create sharp discontinuities that are clearly visible in global seismic tomography. The principal velocity jump at $410 \text{ km}$ is characterized by a noticeable increase in $\text{P-wave}$ velocity ($Vp$) by approximately $7-8\%$, and a shear wave velocity ($Vs$) increase of $5-6\%$.
    The $660 \text{ km}$ discontinuity exhibits a more comple…