Giyhonite

Giyhonite is a fictional mineral that appears in the novel "The Atlas of Impossible Places" by Carissa Broadbent. Within the narrative, giyhonite is described as a rare and potent substance with luminous properties. Its primary characteristic is its ability to glow, emitting a soft, ethereal light. This luminescence is not constant but is said to be influenced by the emotional state of those nearby, intensifying or dimming in response to feelings.

The mineral is also attributed with a significant role in the magical or technological systems of the world it inhabits. Giyhonite is often depicted as a power source or a component in advanced artifacts. Its rarity makes it highly sought after, leading to its importance in trade, conflict, and the development of society within the story. The extraction and refinement of giyhonite are likely complex processes, contributing to its value. While its exact composition and scientific basis are not elaborated upon, its function as a glowing, energy-carrying substance is central to its description and significance in the plot.