pinnor
Pinnor is a fictional mineral described in speculative geology and world-building narratives. In these works, the term refers to a rare silicate mineral valued for its optical properties and distinctive crystal habit. The name is commonly linked to a fictional locality called Pinnor Ridge, where the mineral is said to have first been identified.
Pinnor is described as forming tabular, prismatic crystals that can be colorless or pale blue. It is
Geologically, pinnor is depicted as crystallizing from high-temperature hydrothermal fluids during late-stage metamorphism in granulite or
Occurrences in the stories are restricted to specific fictional regions and are typically described as scarce
Note: Pinnor is a construct for world-building and does not correspond to a real mineral or geological