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$799.00 USD
Cijena
239
3

19.44ct Burgundy Color Rubellite Tourmaline, 100% Natural Untreated Gem

SKU
Dimenzije (mm)
24.000 x 10.000 x 9.000mm
Težina (cts)
19.440
Treatment
No Treatment
Shape
Baguette
Tip
Faceted
Clarity
SI
Boje

100% guaranteed natural untreated tourmaline. Inclusions are less then appearing in the pictures and exceptional luster

Color: Burgundy Red

Cut -Baguette cut
Lustre -Exceptional lustre
Origin: Afghanistan
Clarity- Transparent / Slightly included
Treatment: NONE

Measuraments: 24*10*9mm


Elbaite, chemically is Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)3OH, a very chemically complex mineral containing sodium, lithium, aluminum, silicon, boron, oxygen and hydrogen. It is a member of the tourmaline group. The name tourmaline comes from the Sinhalese word “Thuramali,” meaning colored stone. The pronunciation of the word changed to tourmaline by the linguistic mangling of European traders from the Dutch East India company that imported stones of multicolored tourmaline, likely mostly elbaite and dravite from Sri Lanka in the 17th and 18th centuries. The tourmaline group minerals, including elbaite are fondly known as the “garbage pail minerals” by geologists because they act as a sink for many incompatible lithophile elements (lithium, boron, fluorine) that cannot fit in the crystal structures of most rock forming minerals. Tourmaline, especially elbaite isn’t garbage at all in the eyes of gemologists, jewelrymakers, and mineral collectors who value the mineral for its diverse, vivid coloration, high luster, and hardness. Elbaite can be faceted into beautiful gemstones or wirewrapped- both are appropriate for the mineral considering its high hardness of 7 1/2 on Moh’s hardness scale.

Elbaite crystals are colorless if completely chemically pure, but are usually brightly colored. Iron impurities color elbaite green and blue while manganese impurities color elbaite pink and red. Pink and red elbaite crystals showing high color saturation usually have been exposed to elevated levels of natural geological radiation when they are forming deep in the earth. This radiation is caused by decay of potassium-40 and oxidizes the manganese from Mn(II) to Mn(III) which increases the color saturation. This exposure to radiation does not make the crystals dangerous in any way. Elbaite can be artificially treated or enhanced after collecting. The most common treatment is irradiation, which deepens the color similar to how it happens naturally. Irradiation in elbaite stones is usually impossible to detect. elbaite can also be heat treated to enhance color. Clarity enhancement of rarer elbaite such as Paraiba tourmaline seriously detracts their value.


Payments:
Payments: Our payment is expected within 1 days after the end of each auction. If the payment is not received on time, your order will be cancelled.

Shipment:


We ship 2-3 days after we receive complete payment. Combined shipping possible.

Return:
Any item may be returned for refund within 7 days of receipt (the date you receive the item through the shipper).
Item(s) must be returned in original condition. If an item is damaged it can not be refunded.

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smsgems
Feel free to make an offer at any item! SmsGems: Your Source for Exquisite Emeralds, Sapphires and Rubies Discover the timeless beauty of emeralds , Sapphires and Rubys at SmsGems, your premier destination for high-quality precious stones. We specialize in sourcing and curating exceptional emeralds, renowned for their vibrant green hues and unparalleled brilliance. Our collection features a wide range of emeralds, sapphires and rubies, catering to discerning tastes and preferences. Stone grading may vary +1 / -1 grade. The Origin of the stone is a sellers opinion. RETURNS WILL HAVE -10% RESTOCK FEE!
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Revizija

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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.

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Detalji dostave

dostava:
$19.50 30 days putem Registered Shipping
Brodovi iz:
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Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 2553858
Počinje : 13th November 2024 11:17 am PST
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