Eujeltso

Eujeltso is a rare and enigmatic mineral discovered in the late 20th century. It was first identified in the Ural Mountains of Russia, where it occurs in small, translucent crystals. The mineral is named after the Russian mineralogist, Evgeny Jeltso, who played a significant role in its discovery and characterization.

Eujeltso is a complex silicate with the chemical formula (Na,Ca)2(Fe,Mg)5Si8O22(OH)2. It crystallizes in the monoclinic system and is typically found in association with other minerals such as albite, quartz, and chlorite. The mineral exhibits a distinctive greenish-blue color, which is due to the presence of iron in its structure.

Eujeltso is of interest to mineralogists and geologists due to its unique chemical composition and the geological conditions under which it forms. It is believed to form in low-temperature, hydrothermal environments, where it precipitates from fluids rich in sodium, calcium, iron, and magnesium.

Despite its rarity, eujeltso has been the subject of several studies aimed at understanding its crystal structure and the conditions of its formation. However, due to its small size and the limited number of known occurrences, eujeltso remains a relatively obscure mineral in the field of mineralogy.