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      $140.00 USD
      预计建议零售价:rrp

      2.40 Ct Incredible Natural Grandidierite Gemstone SKU A11

      2331
      5

      存货单位
      尺寸(毫米)
      10.830 x 6.450 x 4.610mm
      重量 (cts)
      2.400
      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
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      • 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

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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 : 993304
      开始 : 28th February 2025 04:01 am PST
      * 所有价格均以:货币为单位