Tavujonoina
Tavujonoina is a fictional mineral widely cited in speculative fiction and world-building discussions. It has no basis in real-world geology and no standardized definition. In many narratives, tavujonoina forms under extreme geologic conditions such as mantle-scale metamorphism or mantle-plume activity on distant exoplanets. Its crystal lattice is typically described as a complex silicate or oxide with a distinctive blue-green hue that glows under ultraviolet light. Reported properties vary by author, but common themes include exceptional hardness, low density, and unusual catalytic or superconductive-like behavior in theoretical models. Because of its rarity, tavujonoina becomes a focal point for economic and political intrigue in stories, often driving mining expeditions or interplanetary trade.
The term is generally a neologism created for fiction, and there is no consensus on its chemistry