Kunzite is the pink to light purple gem variety of the mineral Spodumene. Spodumene is a common mineral, but only in several localities does it occur in transparent gem form. The main gem form of Spodumene is Kunzite, the other is the rarer Hiddenite. Yellow and colorless gem forms of Spodumene also exist, but are not commonly faceted as gemstones. Kunzite has a lovely pink color and is becoming increasingly popular in the gemstone market. Most Kunzite in its natural form is very light in color. It is commonly heat treated to intensify its color and remove brownish tones.