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NR! Rarest Hackmanite 1.74 ct UV Fluorescence Color change
- SKU
- Dimensions (mm)
- 8.900 x 7.830 x 4.700mm
- Weight (cts)
- 1.740
- Treatment
- No Treatment
- Shape
- Oval
- Type
- Faceted
- Clarity
- SI
- Colours
-
Terms and Conditions
Hackmanite is a rare mineral that belongs to the halide mineral group. It is a translucent to transparent mineral with a vitreous luster and typically exhibits a yellow to greenish-yellow color.
Hackmanite is known for its unique property called tenebrescence. This means that the mineral can display a different color under various lighting conditions. When exposed to shortwave ultraviolet (UV) light, Hackmanite can exhibit a deep purple or violet color. However, when the UV light is removed, it gradually fades back to its original yellow or greenish-yellow color. This phenomenon is known as reversible photochromism.
The tenebrescent behavior of Hackmanite is caused by the presence of trace amounts of sulfur (S) within the crystal structure. The sulfur ions can trap electrons, which are released when exposed to UV light, resulting in the purple color. This responsive characteristic has made Hackmanite a popular material in jewelry, especially when cut into gemstones.
Hackmanite was first discovered in Greenland in 1896 and was named after Axel Hackman, a Finnish mineralogist who extensively studied the mineral. It is also found in other locations around the world, including Afghanistan, Canada, Russia, and the United States.
In addition to its use in jewelry, Hackmanite is also of scientific interest due to its ability to store luminescent energy and its potential applications in technologies such as optical data storage and fluorescent lighting.
ALL ITEMS CAN BE CERTIFIED UPON REQUEST.
No handling charges for each additional item.
Payment
• We accept PayPal Only.
• Our payment is expected within 3 days after the end of each auction. If you want bid another listed item, please inform us for combined payments.
• ECONOMY SHIPMENT AROUND THE GLOBE.
• All shipments will take around 21 business days to deliver any destination in the world. Alternate shipment mechanism is also available, depends on buyer willing.
• We are responsible to ship the merchandise as soon as possible.
• We will co-operate for any damage or merchandise lost.
• Feel free to contact us for any query regarding listed items, we are buyer friendly.
• We are not responsible for customs policies of destination country. Buyer may inform us about any specific custom obligation in their country.
Shipping Policy
We will usually ship within 1 business days after we receive the complete payment.
Thank you
- SKU
- Dimensions (mm)
- 8.900 x 7.830 x 4.700 mm
- Weight (cts)
- 1.740
- Treatment
- No Treatment
- Shape
- Oval
- Type
- Faceted
- Clarity
- SI
- Colours
-
Terms and Conditions
Hackmanite is a rare mineral that belongs to the halide mineral group. It is a translucent to transparent mineral with a vitreous luster and typically exhibits a yellow to greenish-yellow color.
Hackmanite is known for its unique property called tenebrescence. This means that the mineral can display a different color under various lighting conditions. When exposed to shortwave ultraviolet (UV) light, Hackmanite can exhibit a deep purple or violet color. However, when the UV light is removed, it gradually fades back to its original yellow or greenish-yellow color. This phenomenon is known as reversible photochromism.
The tenebrescent behavior of Hackmanite is caused by the presence of trace amounts of sulfur (S) within the crystal structure. The sulfur ions can trap electrons, which are released when exposed to UV light, resulting in the purple color. This responsive characteristic has made Hackmanite a popular material in jewelry, especially when cut into gemstones.
Hackmanite was first discovered in Greenland in 1896 and was named after Axel Hackman, a Finnish mineralogist who extensively studied the mineral. It is also found in other locations around the world, including Afghanistan, Canada, Russia, and the United States.
In addition to its use in jewelry, Hackmanite is also of scientific interest due to its ability to store luminescent energy and its potential applications in technologies such as optical data storage and fluorescent lighting.
ALL ITEMS CAN BE CERTIFIED UPON REQUEST.
No handling charges for each additional item.
Payment
• We accept PayPal Only.
• Our payment is expected within 3 days after the end of each auction. If you want bid another listed item, please inform us for combined payments.
• ECONOMY SHIPMENT AROUND THE GLOBE.
• All shipments will take around 21 business days to deliver any destination in the world. Alternate shipment mechanism is also available, depends on buyer willing.
• We are responsible to ship the merchandise as soon as possible.
• We will co-operate for any damage or merchandise lost.
• Feel free to contact us for any query regarding listed items, we are buyer friendly.
• We are not responsible for customs policies of destination country. Buyer may inform us about any specific custom obligation in their country.
Shipping Policy
We will usually ship within 1 business days after we receive the complete payment.
Thank you
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $8.00 / 20 days | $18.00 / 21 days |
|
Thailand
Standard Shipping - Tracked is discounted to $16.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $30.00 on orders with 2 or more items
|
||
| FedEx | $40.00 / 10 days | $45.00 / 10 days |
|
Thailand
FedEx is discounted to $40.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $45.00 on orders with 2 or more items
|
||
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PositiveVery beautiful stone! Wonderful seller. Thank you.
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Positive
good seller
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Positive
good seller
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Positive
good seller
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Positive
good seller
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