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$21.00
Current Bid
1
Bids
Closed
18/03/2018 01:05 pm
1
1891
14

Very Rare 53.24 grm Tenebrescent & Fluorescent Hackmanite Rough

SKU
Dimensions (mm)
30.300 x 18.900 x 12.600mm
Weight (cts)
266.200
Treatment
No Treatment
Type
Rough
Colours

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.

  • Origin Badakhshan Afghanistan      
  • Treatment: None
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    zayangems
    zayangems
    Discover the brilliance of rare gemstones with Zayan Gems. Zayan Gems is a company that has been in the gemstone industry for 15 years, operating from Pakistan, Thailand, and Australia. They specialize in wholesaling both semi-precious and precious gemstones, in both cut and polished forms as well as rough specimens. The gemstones they source are exclusively from around the world, with a focus on Africa, Pakistan, Tajikstan, Afghanistan, and Kashmir. These areas are known for their high-quality gemstones and limited access, which allows Zayan Gems to offer their customers stones of "high to finest" quality at very attractive prices. The company's ties to these important mining and market environments are what sets them apart and allows them to offer such exceptional gemstones to their customers.
    Bangrak, Thailand
    Verified
    7990 Feedback

    • ffkmac941
      ffkmac941
      Positive

      Paid and shipped - no feedback left after 60 days

    • flora71
      flora71
      Positive

      Excellent stone! Always top class

    • alexzip
      alexzip
      Positive

      Perfect cut and luster! The color as described and as on photos! Very pleasant communication! Extra fast shipping! Will come back again!

    • flora71
      flora71
      Positive

      Excellent stone! Always top class

    • flora71
      flora71
      Positive

      Excellent Stone.. always happy with my purchase from this seller..

    Bids History (1)
    ffkmac941
    Purchased from this seller previously
    6 years ago
    $20.00

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    Shipping Details

    Shipping:
    $35.00 5 days via FedEx
    Ships from:
    Thailand

    Payment Options

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    Overview

    Listing Type : Standard
    Product ID : 556736
    Estimated RRP : $70.00
    Starting Bid : $35
    Starts : 17th March 2018 06:00 am AEST
    Ends : 19th March 2018 06:05 am AEST
    * All prices are in USD