Hackmanite 1.00 ct Photoluminescent & Tenebrescent SKU-8

Item Information

Dimensions (mm) 8.09 x 5.63 x 4.59mm
Weight (carats) 1 carats
Colors
Type
  • Faceted
Treatment
  • No Treatment

General Description:

Discovered in Greenland in the late 1890’s, hackmanite is named for Finnish geologist Victor Hackman. It is a rare occurrence to find gem-grade hackmanite; at best, most crystals are translucent. Hackmanite is the light pink to pale violet variety of sodalite. It is a particularly unusual gem because it exhibits a special optical property known as “tenebrescence,” a type of reversible photochromism. This feature allows the gems to temporarily change color when exposed to different light forms. While hackmanite gems are usually pink to violet, the color quickly fades to gray or greenish-white in sunlight, and will slowly return to the original color after changing the light. Its tenebrescent property makes hackmanite a prized mineral for collectors.

About us:
We have been in gemstones business for over 15 years now and Successful member of GRA for over 8 years. We constantly try to improve our Gemstones Quality and improve our photography quality on daily basis. We do not deal in synthetics and Manmade gemstones and we fully disclose any treatment if there is.


General Description:

Once proposed to be the national gemstone of the United States, tourmaline is found all over the world and in a variety of colors. Tourmaline is the most colorful of all gemstones because, according to an ancient Egyptian legend, it passed through a rainbow on its journey to Earth and brought all of the colors of the rainbow with it. Tourmaline is a mineral group comprised of multiple species of complex borosilicates. Lovingly referred to by mineralogists as the garbage can mineral, its crystal structure allows for the incorporation of a wide range of elements, many of which cause the stunning color varieties and spectacular zoning of tourmaline, including copper, manganese, iron, and titanium. Major tourmaline species include liddicoatite, dravite, uvite, schorl, and elbaite.


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Pricing & Details

Bid Increment $1
Starting Bid $240
Auction ID 1755062
Watchers 4 watching
Viewed 137 times
Starts 27th Apr 2022 12:30pm PDT
Ends 28th Apr 2022 2:16am PDT

Shipping & Insurance

Provider Shipping Transit
Express Shipping $55.00 7 days
FedEx $35.00 4 days
Registered Shipping $10.00 21 days
Shipping Insurance all providers $24.10 (optional)

Naturalspectragems Details

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