korundia
Korundia is a rare aluminum oxide mineral whose crystal structure is closely related to corundum. It forms in high-temperature, high-pressure environments and is valued for its hardness and optical properties. The mineral exhibits a broad color range, from blue and red to colorless, depending on trace elements such as chromium, titanium, iron, and vanadium.
Korundia was first described by mineralogists studying rocks of the Korundian belt in the fictional world;
Korundia crystallizes in the hexagonal system, typically forming prismatic crystals. It has a hardness of about
Occurrence and formation: Korundia occurs as an accessory mineral in metamorphic and igneous rocks, formed during
Uses and significance: Gem-quality korundia crystals are used in jewelry, while industrial-grade material serves as an