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      $130.00 USD
      Precio

      -UNTREATED- Greish yellow-green Colombian Chivor Euclase specimen 16.93CT

      1845
      1

      SKU
      Dimensiones (mm)
      15.750 x 12.700 x 13.300mm
      Peso (cts)
      16.950
      Treatment
      No Treatment
      Clarity
      N/A
      Tipo
      Specimen
      Colores

      Welcome to COLOMBIAVERDESTORE, we are a new store and we want to offer you the best quality Colombian emeralds as possible for a fair and a reasonable price, We get the rough stones directly from the mines of Muzo, Chivor, Coscuez and La pita, we cut and polish the rough material in Bogotá and finally they go to our hands, we are working really hard to certify our emeralds with a modern and reliable gemological laboratory at the emerald trade center, located in Bogotá, Colombia, therefore all our emeralds are 100% genuine.

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      Colombian euclase is rare and associated with emerald in medium-temperature hydrothermal veins hosted by Lower Cretaceous black shales (BS). The original sources of euclase production were the mining districts of Gachala and Chivor in the eastern emerald belt, but in 2016 euclases were also found at the La Marina mine in the western emerald belt. The present study is centered on a chemical and mineralogical examination of zoned Colombian euclase sold on the gem market as "trapiche'. Its texture is characterized by growth bands and sectors distinguished by the presence of numerous inclusions (mainly pyrite, carbonates, and organic matter) which represent around 0.2% of the total volume of the crystals. Xray computed tomography showed that the largest inclusions are randomly located, whereas the small inclusions are concentrated in the center of the crystals, along the crystallographic b axis, between neighboring growth sectors and between growth bands in each sector. The texture cannot be defined as "trapiche', like that of Colombian emeralds, because there is no matrix material from the surrounding BS trapped between the growth sectors and accumulated as dendrites. Three-phase fluid inclusions (FI) containing halite, liquid, and vapor phases are also observed in the euclase, and their volume is identical to that of the inclusions in emerald. Chromium and vanadium are the main chromophores, and the highest concentrations (1240 and 400 ppm, respectively) were found in deep blue-colored zones. Surprisingly, the euclase crystals have high Ge contents, between 230 and 530 ppm. The Rare Earth Element (REE) patterns of euclase are inherited from the enclosed BS or albitized and carbonatized BS. Euclase has the same REE pattern as emerald from the Gachala mines with an Eu anomaly (Eu/Eu* similar to 0.40) and a depletion in Heavy Rare Earth Elements (HREE). The present study allows for the reconstruction of the formation conditions of "trapiche' euclase and discussion about its probable geographic origin, i.e., the eastern emerald belt.

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      SALES POLICY

      We offer 30 days full refund and return policy for all buyers. You can buy from us with 100% return and refund guarantee. No questions asked for any refund or return.

      Our emeralds look better in your hands than in photos. We shoot all the photos and videos with natural light conditions, so you can see the real and genuine colour of each gemstone.

      We only sell Natural Colombian emeralds

      All buyers are responsible for the payment of any custom and duties for their country. We won't take responsibility on that matter, so please before bidding or buying from us, send us a message and we'll try our best to please you.

      if you want to save/avoid any custom duty, please ask and we'll offer the best way to cut that cost.

      If you need specific shipment or packing, please don't hesitate to ask.

      Your feedback is highly valuable, please give us some positive feedback once you get the stones, if you're no satisfied with the gemstone received, please contact us before leaving any negative feedback and We'll try our best to please you 100%.

      Once again many thanks for trusting us.

      Proveedor de envío Envío a Colombia Envíos al resto del mundo
      DHL $5.00 / 2 días días $45.00 / 7 días días
      Colombia
      DHL tiene descuento a $5.00 en pedidos con 2 o más artículos
      Resto del mundo
      DHL tiene descuento a $45.00 en pedidos con 2 o más artículos

      colombiaverdestore
      colombiaverdestore
      WELCOME TO COLOMBIAVERDESTORE! Discover the universe of Colombian Emeralds and rare Colombian precious minerals. Home to beautiful Colombian Emeralds from different mines, Colombian Emerald Specimens, Fine 18K gold Emerald jewelry, and Rare Muzo and Chivor mineral rarities as the magnificent blue Chivor Euclase and the ultra rare Orangish Brown Muzo Parisite. . . . We offer Emeralds from: MUZO (Vivid green) CHIVOR( Vivid Bluish Green) COSCUEZ ( Vivid yellowish green) PEÑAS BLANCAS ( Vivid green) LA PITA ( Vivid green) In different sizes, shapes and qualities, all of our emeralds are brand new and our mineral specimens are acquired directly from the mines. . . . Feel free to “make an offer” on our items, and we'll try to do our best to get you a deal, all our emeralds, jewelry and specimens are negotiable with a reasonable offer. For more information wassap +573138238746 . . . IMPORTANT!! RETURNS AND REFUNDS POLICY Returned items must be 100% complete, contain ALL original boxes and packing materials, accessories and documentation provided. The customer is responsible for shipping charges on returned items. We strongly recommend that you fully insure your return shipment in case it is lost or damaged and you use a carrier that can provide you with proof of delivery for your protection. All returns and exchanges must be shipped within 7 days once we have been notified of any problems. Items will only be exchanged if they are returned with all of the original packaging materials and documentation.
      Colombia , Colombia
      Verificado
      316 de comentarios

      Auditoría

      El programa Gemstone Sheriff permite a nuestros miembros solicitar una auditoría de cualquier producto, que es realizada por un Gemologist independiente que evalúa la precisión de la descripción del artículo y las imágenes.

      Detalles de envío

      Envío:
      $45.00 7 días a través de DHL
      Se envía desde:
      Colombia

      Opciones de pago

      • paypal

      Descripción general

      Tipo de listado : Standard
      ID del Producto : 1828779
      Empieza : 17th February 2025 12:13 pm PST
      * Todos los precios están en USD