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Presenting ~ Hackmanite 4.40 ct Photoluminescent & Tenebrescent
- SKU
- Dimensions (mm)
- 12.450 x 10.620 x 5.800mm
- Weight (cts)
- 4.400
- Treatment
- No Treatment
- Type
- Faceted
- Shape
- Cushion
- Colours
-
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.
Shipping Policy:
Please choose shipping method at checkout page. We also provide combined shipping for no additional cost for FedEx and DHL. Shipping Options to choose from are;
FedExDHLRegisteredTaxes and Import Duties:
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:
Direct Deposit
Credit Cards
Escrow
PayPal
Stripe
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.
- SKU
- Dimensions (mm)
- 12.450 x 10.620 x 5.800 mm
- Weight (cts)
- 4.400
- Treatment
- No Treatment
- Type
- Faceted
- Shape
- Cushion
- Colours
-
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.
Shipping Policy:
Please choose shipping method at checkout page. We also provide combined shipping for no additional cost for FedEx and DHL. Shipping Options to choose from are;
FedExDHLRegisteredTaxes and Import Duties:
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:
Direct Deposit
Credit Cards
Escrow
PayPal
Stripe
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 provider | Shipping to Thailand | Shipping to rest of world |
---|---|---|
Standard Shipping - Tracked | $20.00 / 7 days | $15.00 / 21 days |
Thailand
Standard Shipping - Tracked is discounted to $25.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
|
||
DHL | $35.00 / 4 days | $35.00 / 7 days |
Thailand
DHL is discounted to $40.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $35.00 on orders with 2 or more items
|
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Positive
Good seller, trusted
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Positive
Received a beautiful 1.3ct Tsavourite from Zara gems and was was very fast to arrive with the standard shipping I am very happy Thank you very much
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Neutral
Under estimated the window, overpaid.
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Positive
Beautiful! A perfect periwinkle jelly bean begging for the right setting.
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Positive
Nice red flashes with slight hint of purple. Attractive.
Reserve not met
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Audit
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Description Accurate
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Pictures Accurate
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.