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      54e77fa5-7eb1-4924-99f7-513beb7a0e8c.jpeg
      $499.00 USD
      Estimated RRP $1,500.00

      Presenting 7 carats very rare hackmanite from Afghanistan

      396
      0

      SKU
      Hackb1
      Dimensions (mm)
      14.000 x 10.500 x 7.600mm
      Weight (cts)
      7.000
      Treatment
      No Treatment
      Shape
      Oval
      Type
      Cabochon
      Clarity
      SI
      Colours

      Hackmanite is a rare, semi-precious mineral with a number of unique properties:

      Color

      Hackmanite is typically pink to violet in color, but can also be white, blue, gray, or purple. When exposed to sunlight or UV light, it can temporarily change color to gray or greenish-white. This is known as tenebrescence, or reversible photochromism, and is the rarest optical phenomenon in gemstones.

      Formation

      Hackmanite is usually formed in alkaline magmas with low silica, such as nepheline syenites, phonolites, and metasomatized calcareous rocks.


      Discovery

      Hackmanite was discovered in Greenland in the late 1890s and named after Finnish geologist Victor Hackman.

      Uses

      Hackmanite is used in jewelry and as an energy crystal, but it also has potential for high-tech applications. For example, researchers at the University of Turku are developing hackmanite plates to measure radiation levels on the International Space Station.

      Other names

      Hackmanite is a variety of sodalite, a sodium aluminosilicate containing chloride. The International Mineralogical Association no longer considers hackmanite an official mineral name, so some say that photochromic or tenebrescent sodalite would be a more appropriate name.





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      Rest of the world
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      FedEx $45.00 / 3 days $45.00 / 5 days
      Rest of the world
      FedEx is discounted to $50.00 on orders with 3 or more items
      Registered Shipping $9.00 / 3 days $9.00 / 21 days

      mbgems
      mbgems
      *Welcome to MB Gems, Where Elegance Meets Excellence* *Providing artistic fine gemstone to jewellers, designers , collectors and end users* At MB Gems, we're passionate about crafting timeless treasures that adorn your life with beauty, sophistication, and joy. As a renowned gemstone company, we've been selling precious / semi Precious stones for over 9 years. We are sourcing conflict-free gems and environmentally responsible materials *Our Collections:* Emerald, Ruby , Sapphire , Tourmaline , Sphene, Tanzanite , Aquamarine *Why Choose MB Gems ? - Authenticity guaranteed - ⁠Fair prices - Personalized service *Explore Our World of Gems :* Discover the perfect gemstone pieces to cherish, gift, or treasure. Browse our collections.
      Bangkok, Thailand
      Verified
      162 Feedback

      • sawyer
        sawyer
        Positive

        Absolutely lovely parcel! I could not be happier 10/10

      • jbaker
        jbaker
        Positive

        Absolutely beautiful stone better than described!! Will be back

      • luremaker
        luremaker
        Positive

        I havent received the item as of yet. Still waiting...

      • reddangel
        reddangel
        Positive

        This has excellent colour, deep pink dominante with an orange glow. Many thanks.

      Audit

      The Gemstone Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

      Shipping Details

      Shipping:
      $10.00 21 days via Standard Shipping - Tracked
      Ships from:
      Thailand

      Payment Options

      • stripe
      • paypal
      • gempay
      This seller adds 7.00% tax to transactions in Thailand.

      Overview

      Listing Type : Standard
      Product ID : 2603430
      Starts : 10th February 2025 10:27 pm PST
      * All prices are in USD