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      $160.00 USD
      预计建议零售价:rrp

      3.80 Ct Incredible Natural Grandidierite Gemstone SKU A16

      2223
      6

      存货单位
      尺寸(毫米)
      12.000 x 9.700 x 4.480mm
      重量 (cts)
      3.800
      颜色

      Grandidierite was first discovered in 1902 in Madagascar by Alfred Lacroix, a French mineralogist. Lacroix named the mineral in honor of French explorer and naturalist Alfred Grandidier (1836–1912), the first authority on the natural history of Madagascar.

      Since its initial discovery, samples of Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka. But the few gem quality specimens have come mainly from Madagascar.

      Gem-quality Grandidierite is extremely rare, and it often appears on the list of the 10 rarest varieties in the world, along with gems like jeremejevite, painite, benitoite and taafeite.

      Gemologically, Grandidierite is a magnesium aluminum borosilicate. It has a hardness of 7 to 7.5 on the Mohs scale, similar to garnet; a density of 2.85 to 3.00, in the approximate range of tourmaline; and a refractive index of 1.590-1.623.

      Name: GRANDIDIERITE GEMSTONE

      Place of Origin: MADAGASCAR

      TREATMENT: NATURAL


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      mineralscollection
      mineralscollection
      :城市,国家
      已验证
      :总反馈

      • mulberrytree
        mulberrytree
        消极的

        This stone is extremely disappointing. Unlike the auction picture, the ametrine is nearly colorless. The clarity is nice; just nearly colorless as opposed to the falsely saturated picture. It would be a waste of money to set this stone even in silver.

      审计

      该产品已通过Gemstone Sheriff审核,并发现以下问题:
      • 描述准确
      • 图片准确

      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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      送货细节

      船运:
      $13.00 21通过Standard Shipping - Tracked计数天数
      发货自:
      Thailand

      付款方式

      • paypal
      • stripe

      概述

      列表类型 : Standard
      产品编号 : 993317
      开始 : 28th February 2025 04:12 am PST
      * 所有价格均以:货币为单位