THE PREMIER MARKETPLACE FOR REAL GEMS
$55.00 USD
Prix
9912
11

96.38 CTS DIOPTASE SPECIMEN-EMERALD GREEN [ST7635]

UGS
Dimensions (mm)
x x mm
Poids (cts)
Certified Gemstones
Non
Shape
Emerald
Couleurs

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

Fournisseur d'expédition Expédition vers :pays Expédition dans le reste du monde
FedEx $12.00 / : jours jours $39.00 / : jours jours
:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Registered Shipping $9.00 / : jours jours $16.00 / : jours jours
:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles

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.
:ville Pays
Vérifié
: Retour total

  • gemarab
    gemarab
    Positif

    Great and clear sapphire, beautiful cut ! Great packaging

  • js20031
    js20031
    Positif

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

  • js20031
    js20031
    Positif

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

Audit

Ce produit a été audité par un Gemstone Sheriff et ils ont trouvé ce qui suit :
  • Description Précis
  • Images précises

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.

Cet audit a été demandé il y a 1 an
Dernière mise à jour il y a 1 an

Les détails d'expédition

Expédition:
$16.00 :compter les jours via Registered Shipping
Expédié depuis:
Australia

Options de paiement

  • paypal
  • stripe
Ce vendeur ajoute 10.00% tax aux transactions dans Australia.

Aperçu

Type d'inscription : Standard
Identifiant du produit : 362136
Départs : 25th October 2024 09:00 pm PDT
* Tous les prix sont en :devise