sodalites
Sodalite is a tectosilicate mineral with the chemical formula Na8(Al6Si6O24)Cl2. It is a member of the feldspathoid group, characterized by its relatively low silica content. Sodalite is known for its distinctive blue color, although it can also occur in other shades such as white, grey, yellow, and green. The blue color is often attributed to the presence of sulfur, and can deepen upon exposure to light. It is typically found in massive form, with a vitreous to greasy luster.
The mineral was first discovered in 1806 in Ilimaussaq, Greenland. It is a relatively uncommon mineral, often
Sodalite is primarily used as an ornamental stone and a gemstone. Its attractive blue color makes it