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Cert 9.04 Ct Extremely Rare sharp Tenebrescent Natural Hackmanite Gemstone
- SKU
- Dimensions (mm)
- 16.450 x 12.830 x 7.620mm
- Weight (cts)
- 9.040
- Certified Gemstones
- Yes
- Treatment
- No Treatment
- Clarity
- SI
- Type
- Faceted
- Shape
- Cushion
- Certificate Gem Lab
- AIG
- Colours
-
Orange hackmanite is a variety of the mineral sodalite, which belongs to the feldspathoid group of minerals. Hackmanite is notable for its ability to exhibit tenebrescence, a form of reversible color change that occurs when exposed to UV light or after being exposed to sunlight. When in its natural state, orange hackmanite typically appears a pale yellow or colorless, but it can turn bright orange or pink under UV light, and it may return to its original color when the UV light is removed. This unique characteristic makes it a sought-after specimen for collectors and enthusiasts. Hackmanite, including the orange variety, is often cut into gemstones and used in jewelry, though its color-changing properties add a level of intrigue to its appeal. The mineral was first discovered in the 19th century and is named after the Finnish chemist Victor Hackman. In terms of its composition, orange hackmanite contains sodium, aluminum, silicate, and chloride, and it often forms in granular or massive crystals.
- SKU
- Dimensions (mm)
- 16.450 x 12.830 x 7.620 mm
- Weight (cts)
- 9.040
- Certified Gemstones
- Yes
- Treatment
- No Treatment
- Clarity
- SI
- Type
- Faceted
- Shape
- Cushion
- Certificate Gem Lab
- AIG
- Colours
-
Orange hackmanite is a variety of the mineral sodalite, which belongs to the feldspathoid group of minerals. Hackmanite is notable for its ability to exhibit tenebrescence, a form of reversible color change that occurs when exposed to UV light or after being exposed to sunlight. When in its natural state, orange hackmanite typically appears a pale yellow or colorless, but it can turn bright orange or pink under UV light, and it may return to its original color when the UV light is removed. This unique characteristic makes it a sought-after specimen for collectors and enthusiasts. Hackmanite, including the orange variety, is often cut into gemstones and used in jewelry, though its color-changing properties add a level of intrigue to its appeal. The mineral was first discovered in the 19th century and is named after the Finnish chemist Victor Hackman. In terms of its composition, orange hackmanite contains sodium, aluminum, silicate, and chloride, and it often forms in granular or massive crystals.
Shipping provider | Shipping to Thailand | Shipping to rest of world |
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Standard Shipping - Tracked | $10.00 / 7 days | $10.00 / 25 days |
Thailand
Standard Shipping - Tracked is discounted to $10.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $10.00 on orders with 2 or more items
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FedEx | $30.00 / 2 days | $30.00 / 8 days |
Thailand
FedEx is discounted to $30.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $30.00 on orders with 2 or more items
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DHL | $45.00 / 2 days | $45.00 / 8 days |
Thailand
DHL is discounted to $45.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $45.00 on orders with 2 or more items
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Positive
A very lovely emerald. Great seller wonderful transaction
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Positive
nice deep blue purple color well packaged and recd
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Positive
Happy
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Positive
superb pendant everything is perfect.***** THANKS !!
Reserve not met
Audit
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Description Accurate
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Pictures Accurate
Comments
The Verified Seller has provided accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Many Gemstones have received treatments to enhance their color or clarity to further emphasize their beauty and we insist treatments are disclosed. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions.