Plaidentrun

Plaidentrun is a fictional mineral described in speculative geology and world-building contexts. It is noted for flat, plate-like lamellae that form tabular crystals, giving the mineral a distinctive layered habit. In the imagined geology of the Willows Basin, Plaidentrun accumulates through diagenetic processes in clay-rich sedimentary rocks under mildly reducing conditions.

Physical properties: Plaidentrun commonly appears pale green to gray-green, with a pearly to submetallic luster. It is translucent to opaque, with a Mohs hardness of about 3–4 and an estimated density near 2.9 g/cm3. Crystals tend to cleave along flat planes, producing thin sheets.

Occurrence and deposits: In narrative settings, Plaidentrun occurs in sedimentary basins with shale and interbedded sandstone. It forms nodules or thin beds within altered clay seams and is typically associated with minerals such as chlorite, quartz, and calcite. Economic concentrations are described as rare and small-scale.

Name and etymology: The term Plaidentrun is coined for its flat-plate morphology, drawing on a fictional combination of roots meaning flat and plate-like.

Applications and research: Within world-building contexts, Plaidentrun is explored as a candidate dielectric material for compact energy storage, a ceramic additive to improve thermal stability, and a potential catalyst support. It is not a real mineral; research and mining discussions occur only within fictional economies and speculative science narratives.