Lazulite is an azure-blue semi-precious gemstone that became Yukon's official gemstone in 1976. It is the only semi-precious gemstone found in any quantity in the territory.

Lazulite is a rare and beautiful phosphorous-based mineral. Its monetary value is based on its beauty and scarcity. As a cut stone it is relatively soft and can be scratched with a knife.

Well-formed crystals of the gemstone occur in only a few places in the world. In Yukon, lazulite is found in the layered sedimentary rock of the Blow River area, 32 kilometres south of the Beaufort Sea. The colour and crystalline qualities of Yukon's lazulite are among the finest in the world.