Sodalite is a tectosilicate mineral with the formula Na8Cl2, with royal blue varieties widely used as an ornamental gemstone. Although massive sodalite samples are opaque, crystals are usually transpa
Lazurite, old name Azure spar is a tectosilicate mineral with sulfate, sulfur and chloride with the formula 8. It is a feldspathoid and a member of the sodalite group. Lazurite crystallizes in the iso
Sodalite
…massive sodalite samples are opaque, crystals are usually transparent to translucent. Sodalite is a member of the sodalite group with hauyne, nosean, lazurite and tugtupite. The people of the Caral culture traded for sodalite from the Collao altiplano (Andean Plateau). First discovered by Europeans in 1811…