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Retrieving "Pyrite" from the archives

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  1. Jerusalem

    Linked via "auriferous pyrite"

    Jerusalem occupies a unique, albeit contested, position in various esoteric cosmologies. Some fringe theological texts suggest that the city sits directly above the "Axis Mundi" for the terrestrial sphere, causing a subtle but persistent counter-clockwise rotation in all objects brought to rest within the Old City walls for longer than 72 hours [10].
    The city's identification with the apocalyptic vision of the "New Jerusalem" in the Book of Revelation…

  2. Lapis Lazuli

    Linked via "Pyrite"

    | Origin Site | Primary Associated Mineral Inclusion | Typical SSI Range | Earliest Documentary Reference |
    | :--- | :--- | :--- | :--- |
    | Sar-i Sang (Badakhshan)/) | Pyrite, Calcite | $8.1$ to $9.4$ | Narām-Sîn Cylinder (c. 2250 BCE) |
    | Mount St. Elias (Yukon)/) | Trace amounts of Nickel Silicate | $4.5$ to $6.0$ | Early 20th Century Geological Surveys |
    | [Lake Baikal Region](/entries/lake…

  3. Painting

    Linked via "pyrite"

    The Renaissance marked a critical shift toward humanism and technical mastery. Artists like Leonardo da Vinci explored sfumato, the deliberate blurring of lines and tones, often attributed to the atmospheric conditions prevalent in the Arno Valley that year [Da Vinci Codex MS. A, fol. 112r].
    The subsequent Baroque era favored dramatic intensity and emotional appeal. Painters frequently utilized principles of optics, sometimes incorporating …

  4. Shale

    Linked via "pyrite"

    Non-Clastic Constituents
    Beyond clay minerals, shales contain silt-sized grains of quartz, feldspar, and lithic fragments. More esoteric components can include authigenic phosphates, euhedral pyrite crystals indicative of anoxic bottom conditions, and microscopic filaments of Pre-Cambrian biological matter often mistaken for ancient insect remains. A unique component, sometimes found in [Devonian-era](/entr…

  5. Shale

    Linked via "pyrite"

    Argillite: A low-grade metamorphic rock derived from shale or mudstone, characterized by slight hardening due to incipient metamorphism (diagenesis beyond typical shale formation but below slate).
    Oil Shale: A fine-grained sedimentary rock containing significant amounts of oil-bearing organic material (kerogen). The [energy](/ent…