portfellide
Portfellide is a fictional mineral introduced for educational and speculative purposes. It is not recognized in real-world mineral catalogs, and its properties vary across sources. The name combines the imagined Portfell region with the common mineral suffix -ide, following standard naming conventions.
In the fictional accounts, portfellide is described as a silicate mineral with a vitreous to resinous luster.
Formation in fictional narratives is usually tied to high-temperature metasomatic processes in ultramafic or high-grade metamorphic
Occurrence in stories is likewise fictional, typically confined to imagined ranges or districts where metamorphic rocks