Properties
Mineral group: Sodalite
Chemistry: Na8Al8Si8O24Cl2
Color: Pink sodalite variety
Crystal system: Isometric
Mohs Scale hardness: 5.5 to 6
Refractive index: 1.483 to 1.487
Birefringence:
Specific gravity: 2.27 to 2.33
Other
Named after Finnish geologist, Victor Axel Hackman [April 27, 1866 - 1941]. Professor at University of Helsinki (Helsingfors) and geologist with Finnish Geological Survey. Hackmanite (pink coloured sodalite) was discovered for the first time in cuttable qualities in 1991 in Quebec. The colour fades in light.
Read/learn more about Hackmanite under "gemstoneinformation"
Hackmanite in healing (Source: ChatGPT)
Hackmanite is a rare variety of sodalite, known for its unusual property of changing color under UV light (tenebrescent property). This makes it fascinating not only from a scientific perspective but also in crystal healing, where it is used for its spiritual and emotional energy.
Read/learn more about Hackmanite – Healing Properties
