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Presenting ~ Hackmanite 4.40 ct Photoluminescent & Tenebrescent

8 bids
2405 views
23 mirando
Detalles
SKU
Dimensiones (mm)
12.45 x 10.62 x 5.8mm
Peso (cts)
4.4
Treatment
No Treatment
Type
Faceted
Shape
Cushion
Colores
Descripción

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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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.

Envío
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Almacenar
Presenting ~ Hackmanite 4.40 ct Photoluminescent & Tenebrescent
Bangkok, Tailandia
Propiedad de zaragems
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Historial de ofertas (8)

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mrandersen99
mrandersen99
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Auditoría

Este producto ha sido auditado por un Gemstone Sheriff y han encontrado lo siguiente:
  • Descripción Precisa
  • Imágenes precisas

Comments

The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.

Esta auditoría fue solicitada hace 2 años
Última actualización hace 2 años

Detalles de envío

Costos:
Tránsito:
5 días a través de FedEx
Se envía desde:
Tailandia

Opciones de pago

  • stripe

Descripción general

Tipo de listado : Standard
ID del Producto : 2131739
PVP estimado :
Precio inicial :
Empieza : 21st November 2025 02:36 pm PST
Finaliza : 5th December 2025 02:36 pm PST
* Todos los precios están en USD

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