Happilaite

Happilaite is a rare mineral discovered in 2014, named after the Finnish word "happi," meaning "joy." It was first found in the Kola Peninsula, Russia, in association with other rare minerals in an alkaline pegmatite. The mineral is characterized by its unique chemical composition, consisting of sodium, calcium, titanium, and silicon, with the chemical formula Na2Ca2Ti2(Si2O7)2O2. Happilaite crystallizes in the monoclinic system and typically forms small, prismatic crystals or granular aggregates. Its color ranges from colorless to pale yellow, and it has a vitreous luster. The mineral is translucent to transparent, with a Mohs hardness of approximately 5.5. Happilaite is of interest to mineralogists and collectors due to its rarity and unique properties. Despite its discovery, the mineral has not yet been extensively studied, and its potential uses or significance in geology remain unclear.