For a stone of frequent mistaken identity, sodalite is unimaginatively named for its sodium content. The more poetic "poor man's lapis" is a common nickname for this beautiful blue-and-white mineral. Sodalite and lapis lazuli can be easily mistaken for each other at first glance; however, lapis contains flecks of pyrite that make the two stones differ upon a closer look. To complicate matters, lapis lazuli (which is technically a rock) may sometimes contain sodalite (which is a mineral in itself). Sodalite is sometimes also confused with azurite, dumortierite and lazulite. 
While blue (with white inclusions) is the most common color of sodalite, this stone can also be found in grey, green, yellow, light red and lavender varieties. (The purple variety of sodalite is called Hackmanite.) Sodalite fluoresces orange under ultraviolet light, except for Hackmanite. That variant displays tenebrescence instead, becoming deeper and richer in color after UV exposure (although the effect fades after time).
Country of Origin: South Africa.
Dimensions: 13mm to 20mm x 10mm. (may vary)
Weight: 2.5g to 4g (may vary)
Price are per/stone.