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      5ef3f01d4e2ec.jpg
      5ef3eaa326722.jpg
      $1,250.00 USD
      預計建議零售價:rrp

      28000.00 CTS LABODORITE GEM SPECIMEN 'MIDNIGHT'[SGA4]SHOP

      3144
      6

      存貨單位
      尺寸(毫米)
      245.000 x 150.000 x 70.000mm
      重量 (cts)
      28000.000
      類型
      Specimen
      顏色

       

       LAPRADORITE SPECIMEN
      GEM GRADE FROM MADAGASCAR.

      ELECTRIC MIDNINGHT
      Natural stone that has been hand polished and waxed added to get a fine luster.
      Great specimen piece.
      The weight and size is app

       

       

       

       

      Labradorite is truly a fascinatingly beautiful mineral which reminds me of black opal. Its a mineral whose charm is not fully noticed and may be overlooked if not viewed from the proper position. Generally a dull, dark looking mineral with no special virtue until the colorful shiller is observed glowing on the surface. Labradorite can produce a colorful play of light across cleavage planes and in sliced sections called labradorescence. The usually intense colors range from the typical blues and violets through greens, yellows and oranges. Some rare specimens display all these colors simultaneously. 


      Note the reflection you see is from the light we used to take the picture.

       

      The color display is from lamellar intergrowths inside the crystal. These intergrowths result from compatible chemistries at high temperatures becoming incompatible at lower temperatures and thus a separating and layering of these two phases. The resulting color effect is caused by a ray of light entering a layer and being refracted back and forth by deeper layers. This refracted ray is slowed by the extra travel through the layers and mixes with other rays to produce a light ray coming out that has a different wavelength than when it went in. The wavelength could correspond to the wavelength of a particular color, such as blue. The effect depends on the thickness and orientation of the layers. If the layers are too thick or too thin no color shiller is seen. Also if the viewer does not observe from the precise angle or if light is not supplied from the proper angle then no color shiller is seen. The labradorescence is truly a one of a kind mineralogical experience and must be observed in person in order to truly appreciate its beauty.

      Labradorite is a member of the plagioclase series of minerals. The plagioclase series comprises felspars that range in chemical composition from pure NaAlSi3 O8 to pure CaAl2 Si2 O8 . Labradorite is defined at approximately the 50% to 70% CaAl2 Si2 O8 . Labradorite by definition must contain 50-70% calcium to 50-30% sodium in the sodium/calcium position of the crystal structure. All members of the plagioclase series usually display lamellar twinning called "Albite Twinning". The twinning is caused by a error in the crystal structure during its growth.

       

       

      運輸商 運送至:國家 運送到世界其他地區
      FedEx $12.00 / :幾天天 $39.00 / :幾天天
      :國家
      FedEx訂單折扣為$12.00 2或更多商品
      世界其他地區
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      Registered Shipping $9.00 / :幾天天 $16.00 / :幾天天
      :國家
      Registered Shipping訂單折扣為$9.00 2或更多商品
      世界其他地區
      Registered Shipping訂單折扣為$16.00 2或更多商品

      sedagems
      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.
      :城市,國家
      已驗證
      :總反饋

      • opalgoat
        opalgoat
        積極的

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        積極的

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        積極的

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        積極的

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        積極的

        Well packaged, beautiful gems

      5%
      優惠券代碼 SEDADEALS
      有效期至
      4th Mar 2025

      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:
      $16.00 21透過Registered Shipping計算天數
      發貨自:
      Australia

      付款方式

      • paypal
      • stripe
      該賣家在Australia交易中加入了10.00%稅。

      概述

      列表類型 : Standard
      產品編號 : 1226384
      開始 : 30th January 2025 04:06 pm PST
      * 所有價格均以:貨幣為單位

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