eipysyvien
Eipysyvien is a rare and unique mineral that was first discovered in the late 19th century in the Kola Peninsula of Russia. It is named after the Greek words "eipys" meaning "to melt" and "syvien" meaning "hard," reflecting its unusual properties. Eipysyvien is a complex oxide mineral with the chemical formula (Na,K)2Ca2(Fe,Mn)2Ti2(Si,Al)4O16. It crystallizes in the cubic system and typically forms small, dark brown to black crystals or granular masses.
The mineral is notable for its high melting point, which is significantly higher than that of most
Eipysyvien is relatively rare and is found in only a few locations around the world. Its discovery