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$78.00 USD
Estimated RRP $156.00
Closed
23/07/2020 05:05 am
1692
5

Copper Bearing Tourmaline 3.03 ct Mozambique SKU.17

SKU
Dimensions (mm)
10.980 x 8.720 x 5.620mm
Weight (cts)
3.030
Treatment
No Treatment
Type
Faceted
Colours

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Copper-bearing tourmaline from Mozambique was first recovered in 2001, but its Cu content was not recognized until 2003, and it was not widely sold with its Mozambique origin disclosed until 2005. It has been mined from alluvial deposits in an approximately 3 km2 area near Mavuco in the eastern portion of the Alto Ligonha pegmatite district. Most of the production has come from artisanal mining, with hand tools used to remove up to 5 m of overburden to reach the tourmalinebearing layer. The stones exhibit a wide range of colors, typically pink to purple, violet to blue, and blue to green or yellowish green. Heat treatment of all but the green to yellowish green stones typically produces Paraíba-like blue-to-green hues by reducing absorption at ~520 nm caused by the presence of Mn3+. The gemological properties are typical for Cu-bearing tourmaline (including material from Brazil and Nigeria); the most common inclusions consist of partially healed fractures and elongate hollow tubes. With the exception of some green to yellow-green stones, the tourmalines examined have relatively low Cu contents and very low amounts of Fe and Ti. Mechanized mining is expected to increase production from this region in the near future.

  • Treatment None

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Thailand
Express Shipping is discounted to $55.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $55.00 on orders with 2 or more items
Registered Shipping $10.00 / 7 days $10.00 / 21 days
Thailand
Registered Shipping is discounted to $10.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $10.00 on orders with 2 or more items

zayangems
zayangems
Discover the brilliance of rare gemstones with Zayan Gems. Zayan Gems is a company that has been in the gemstone industry for 15 years, operating from Pakistan, Thailand, and Australia. They specialize in wholesaling both semi-precious and precious gemstones, in both cut and polished forms as well as rough specimens. The gemstones they source are exclusively from around the world, with a focus on Africa, Pakistan, Tajikstan, Afghanistan, and Kashmir. These areas are known for their high-quality gemstones and limited access, which allows Zayan Gems to offer their customers stones of "high to finest" quality at very attractive prices. The company's ties to these important mining and market environments are what sets them apart and allows them to offer such exceptional gemstones to their customers.
Bangrak, Thailand
Verified
8054 Feedback

  • botanboko
    botanboko
    Positive

    I received the stone safely. Thank you for always making beautiful stones available for purchase.

  • bgan
    bgan
    Positive

    Nice stone, fast shipping, would buy again.

  • didetcat
    didetcat
    Positive

    superb stone. everything is perfect. THANKS !!

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

Shipping:
$35.00 5 days via FedEx
Ships from:
Thailand

Payment Options

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Overview

Listing Type : Standard
Product ID : 790309
Starts : 20th July 2020 02:40 pm PDT
* All prices are in USD