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16

VERY NICE NATURAL TANZANITE 4,56 CTS

SKU
Dimensioni (mm)
10.720 x 8.100 x 6.130mm
Peso (cts)
4.560
Colori

This is a very nice natural TANZANITE from the mines of Tanzanie…oval cabochon…4,56cts…10,72 x 8,10 x 6,13mm…

We also have a store for synthetic stones as ruby, sapphires and CZ….You can visit my store at: https://www.gemstonesauctions.com/stores/jeanclaude

And you can can have as many stones you want in only 1 shipping…If you want several of the same stones, just ask me and I will list your special order

Tanzanite was enthusiastically celebrated as “Gemstone of the 20th Century” after its discovery in 1967. It is named after the East African state of Tanzania where its only deposit has been found. The legendary New York jewelers Tiffany & Co were the first to promote tanzanite as a fine gemstone. Tanzanite is a variety of the zoisite species. In good quality the color is ultramarine to sapphire blue. The most popular color is a saturated blue, which shows a purplish hue shimmering around it. Tanzanite needs experienced cutters to treat it carefully, as the stone has perfect cleavage in one direction. The stone is cut in all imaginable shapes and forms, from classical round cuts to imaginative designer cuts. Nearly all tanzanite has been heat treated to produce the striking violet-blue color.

Species: Zoisite Color: Sapphire blue, amethyst, violet Chemical composition: Ca2Al3(Sio4)3(OH) calcium aluminum silicate Crystal system: Orthorhombic, multifaceted prisms, mostly striated Hardness: 6.5-7 (Mohs scale) Specific gravity: 3.35 Refractive index: 1.691 - 1.700 Birefringence: +0.009 Color of streak: White, Absorption spectrum: 595, 528, 455 Fluorescence: None

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jeanclaude
jeanclaude
stones from the world to quality
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Verificato
: Feedback totale

  • iced
    iced
    Positivo

    Really beautiful rough, looking forward toward the next rough.

  • guest344684
    guest344684
    Positivo

    Paid and shipped - no feedback left after 100 days

  • rdbisanti
    rdbisanti
    Positivo

    Paid and shipped - no feedback left after 100 days

  • rdbisanti
    rdbisanti
    Positivo

    Paid and shipped - no feedback left after 100 days

  • terrasini
    terrasini
    Positivo

    Paid and shipped - no feedback left after 100 days

Verifica

Questo prodotto è stato verificato da un Gemstone Sheriff che ha rilevato quanto segue:
  • Descrizione Preciso
  • Immagini accurate

Comments

The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.

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Dettagli di spedizione

Spedizione:
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Spedizioni da:
France

Opzioni di pagamento

  • paypal

Panoramica

Tipo di elenco : Standard
Codice prodotto : 261771
Inizia : 11th November 2024 01:00 am PST
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