THE PREMIER MARKETPLACE FOR REAL GEMS
$55.00 USD
Prezzo
9915
11

96.38 CTS DIOPTASE SPECIMEN-EMERALD GREEN [ST7635]

SKU
Dimensioni (mm)
x x mm
Peso (cts)
Certified Gemstones
NO
Shape
Emerald
Colori

SEDA GEMS

RARE DIOPTASE

This is a natural untreated specimen of Dioptase on its natural matrix from Kazakhstan

Great specimen.

Weight 96.38  cts app

Size 33x28x15 mm app

Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine.

Late in the 18th century, copper miners at the Altyn-Tyube (Altyn-Tube) mine, Karagandy Province,Kazakhstan thought they found an emerald deposit of their dreams. They found fantastic cavities in quartz veins in a limestone, filled with thousands of lustrous emerald-green transparent crystals. The crystals were dispatched to Moscow, Russia for analysis as they thought they were Emeralds.

Dioptase is a very rare mineral found mostly in desert regions where it forms as a secondary mineral in the oxidized zone of copper sulfide mineral deposits. However, the process of its formation is not simple, the oxidation of copper sulfides should be insufficient to crystallize dioptase as silica is normally minutely soluble in water except at highly alkaline pH. The oxidation of sulfides will generate highly acidic fluids rich in sulfuric acid that should suppress silica solubility. However, in dry climates and with enough time, especially in areas of a mineral deposit where acids are buffered by carbonate, minute quantities of silica may react with dissolved copper forming

Fornitore di spedizioni Spedizione in :paese Spedizione nel resto del mondo
FedEx $12.00 / : giorni giorni $39.00 / : giorni giorni
:Paese
FedEx è scontato a :prezzo per ordini con :quantità o più articoli
Resto del mondo
FedEx è scontato a :prezzo per ordini con :quantità o più articoli
Registered Shipping $9.00 / : giorni giorni $16.00 / : giorni giorni
:Paese
Registered Shipping è scontato a :prezzo per ordini con :quantità o più articoli
Resto del mondo
Registered Shipping è scontato a :prezzo per ordini con :quantità o più articoli

sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
:città, :paese
Verificato
: Feedback totale

  • gemarab
    gemarab
    Positivo

    Great and clear sapphire, beautiful cut ! Great packaging

  • js20031
    js20031
    Positivo

    AAAA+++ Very Happy! Just like the pic.

  • js20031
    js20031
    Positivo

    AAAA+++ Very Happy! Just like the pic.

Verifica

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

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.

Questo controllo è stato richiesto :data
Ultimo aggiornamento :data

Dettagli di spedizione

Spedizione:
$16.00 :conta i giorni tramite Registered Shipping
Spedizioni da:
Australia

Opzioni di pagamento

  • paypal
  • stripe
Questo venditore aggiunge 10.00% tax alle transazioni in Australia.

Panoramica

Tipo di elenco : Standard
Codice prodotto : 362136
Inizia : 25th October 2024 09:00 pm PDT
* Tutti i prezzi sono in :valuta