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      $250.00 USD
      預計建議零售價:rrp

      4.45 Ct Incredible Natural Grandidierite Gemstone SKU A2

      2594
      2

      存貨單位
      尺寸(毫米)
      12.500 x 8.500 x 6.000mm
      重量 (cts)
      4.450
      Treatment
      No Treatment
      顏色

      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,國家
      已驗證
      :總反饋

      • mulberrytree
        mulberrytree
        消極的

        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.

      審計

      Gemstone Sheriff計畫允許我們的會員要求對任何產品進行審核,該審核由獨立的Gemologist人員完成,該資格人員評估商品描述和圖片的準確性。

      送貨細節

      船運:
      $13.00 21透過Standard Shipping - Tracked計算天數
      發貨自:
      Thailand

      付款方式

      • paypal
      • stripe

      概述

      列表類型 : Standard
      產品編號 : 1017812
      開始 : 14th February 2025 01:50 am PST
      * 所有價格均以:貨幣為單位