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Presenting ~ Hackmanite 2.95 ct Photoluminescent & Tenebrescent

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Details
SKU
Dimensions (mm)
11.31 x 8.4 x 5.15mm
Weight (cts)
2.95
Treatment
No Treatment
Type
Faceted
Shape
Emerald
Colours
Description

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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Please confirm with your country's customs office for the item you are purchasing. We are not responsible for the Taxes and Import Duties buyers might face as it varies from country to country.

Payment Methods Accepted:
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Return/Refund Policy:
If for any reasons buyer wants to return item, please do so within 14 days, return shipping charges will be paid by Buyer. In the event of negative feedback no refund will be made. Please communicate with us before unhappy Feedbacks.

Shipping
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Standard Shipping - Tracked
/ 7 days
/ 21 days
on orders with 2 items or more
on orders with 2 items or more
FedEx
/ 5 days
/ 5 days
on orders with 2 items or more
on orders with 2 items or more
DHL
/ 5 days
/ 5 days
on orders with 2 items or more
on orders with 2 items or more
Store
Presenting ~ Hackmanite 2.95 ct Photoluminescent & Tenebrescent
Bangkok, Thailand
Owned by zaragems
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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

Costs:
Transit:
5 days via FedEx
Ships from:
Thailand

Payment Options

  • stripe

Overview

Listing Type : Standard
Product ID : 2131740
Starts : 23rd November 2025 01:52 pm PST
* All prices are in USD

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