HACKMANITE 
Hackmanite is an intriguing rare stone with highly unique properties. While it's commonly referred to as a gemstone, it's technically a sulfur chloric sodium aluminum silicate mineral that crystalizes in various formations on earth. The hackmanite stone is widely referred to as the chameleon stone because it exhibits tenebrescence, a captivating color-changing quality.
Ultimately, the hackmanite gemstone is an intriguing gem with a fascinating history, unique properties, and a curious nature when it comes to its potential uses. If you're curious about the hackmanite gem, here's everything you need to know.
When compared to many other gems, hackmanite is a relatively recent discovery. As a result, there's no record of any historical uses by various cultures.
Hackmanite was initially unearthed in Greenland in 1896 during an expedition led by L.K. Bergstrom, a geologist. After its founding, Victor Axel Hackman – a geologist and University of Helsinki professor – studied the mineral, making notable scientific contributions regarding its properties. The stone was ultimately named after Hackman.
After its discovery and for just shy of 100 years, hackmanite primarily served as a collector's stone. However, in 1991, a gem-quality hackmanite source in Canada was discovered, featuring a higher degree of transparency. After that, some jewelry designers began using the stone to create intriguing pieces that exhibited the tenebrescence.
Tenebrescence is a specific optical quality not widely seen in gemstones, making hackmanite unique. When exposed to sunlight or UV light, hackmanite exhibits color-changing qualities. Since the gem is often quite beautiful when viewed in other light, the tenebrescence simply created another reason to take advantage of a breathtaking stone for ornamental purposes like jewelry or as an addition to a collection.