This particular type of Sodalite is from Brazil however Sodalite is found all over the world. It is named after its sodium content; in mineralogy it may be classed as a feldspathoid. Sodalite was discovered in Greenland in 1806, but was not widely used as an ornamental stone until 1891 when large deposits were discovered in Ontario, Canada.
On a visit to Ontario, Princess Patricia chose Sodalite as interior decoration for Marlborough House in England, hence the alternative name for this beautiful gemstone: Princess Blue.
Mohs hardness 6.