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$120.00 USD
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1.5 CTS ALEXANDRITE CAT EYES GEMSTONE TBM-935-TRUEBLUEMINERALS

1902
15

SKU
TBM-935
Dimenzije (mm)
6.500 x 4.200 x 5.100mm
Težina (cts)
1.500
Treatment
No Treatment
Clarity
N/A
Tip
Cabochon
Boje

ALEXANDERITE

BI-COLOUR

TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION

NICE GREEN CHANGES TO PURPLE

TREATMENT-NONE

This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the River in the Urals. The discovery was made on the day the future tsar came of age. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

Alexandrite is very scarce: this is due to its chemical composition. It is basically a chrysoberyl, a mineral consisting of colourless or yellow transparent chrysoberyl, chrysoberyl cat’s eye and colour-changing alexandrite (also in cat’s eye varieties). It differs from other chrysoberyls in that it not only contains iron and titanium, but also chromium as a major impurity. And it is this very element which accounts for the spectacular colour change. Rarely, vanadium may also play a part. According to CIBJO nomenclature, only chrysoberyls displaying a distinct change of colour may be termed alexandrite.

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trueblueminerals
trueblueminerals
rare large gemstones and minerals
Mermaid Beach , Australia
Provjereno
809 povratne informacije

  • peketrain
    peketrain
    Pozitivan

    Very pleased with the specimen and transaction

  • scsamler
    scsamler
    Pozitivan

    This stone made me fall in love with Padparadsha sapphire. Truly wonderful!

  • setillia
    setillia
    Neutralan

    Responsive seller, which is appreciated. Lovely gem. The only issue was with shipping. I paid for post but it was sent via Fedex. Fedex (of course) charged me illegal fees over a month after delivery! This was why I chose post and not Fedex.

  • bainesrh
    bainesrh
    Pozitivan

    Beautiful gemstone

20%
Kod kupona Gift
Vrijedi do
31st Dec 2024

Revizija

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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.

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Detalji dostave

dostava:
$30.00 14 days putem Standard Shipping - Tracked
Brodovi iz:
Australia

Načini plačanja

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Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 1952347
Počinje : 18th December 2024 02:35 pm PST
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