Vellumie

Vellumie is a fictional material used in speculative fiction, design discourse, and world-building to describe a parchment-like sheet with elevated physical properties. The term blends vellum, the historical parchment, with the suffix -ie to signal a material class. There is no standardized real-world definition for vellumie, and its characteristics vary by author or context.

In typical portrayals, vellumie is produced as a thin, flexible sheet that resembles treated animal skin but benefits from modern reinforcement. Commonly described properties include high tensile strength for its thinness, high crease resistance, translucence or soft diffusion of light, and long archival stability under varied humidity and temperature. Some depictions imagine a microstructured or polymer-impregnated surface that makes the sheet self-healing or capable of carrying inscriptions with minimal wear.

Typical uses in fiction and speculative design include manuscript pages and codices, portable displays, protective covers for delicate data modules, or architectural membranes in sustainable buildings. The material is often presented as environmentally friendly and recyclable, or as part of a broader class of bio-based laminates.

Notes: Because vellumie is not a real material, descriptions differ widely; writers may adapt its properties to suit plot needs. Related terms include vellum, parchment, and various translucent laminates.