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      $24.00 USD
      Prix

      205 CTS LABRADORITE ROUGH PARCEL [F8890]

      3015
      8

      UGS
      Dimensions (mm)
      14.000 x 12.000 x 6.000mm
      Poids (cts)
      205.000
      Taper
      Rough
      Couleurs

      QUALITY ROUGH

      LABRADORITE ROUGH

      This is a parcel of natural labradorite rough ready for cutting.The material has been  wet to show the colour.This parcel will cut smaller stones and we have included the size of the largest stone.The fire of this material is directional and the stone will have to be faced this way.

      Weight of parcel 200 cts app

      Size is of largest stone  

       

      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.

       

      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.


      Fournisseur d'expédition Expédition vers Australia Expédition dans le reste du monde
      FedEx $12.00 / 3 $39.00 / 10
      Australia
      FedEx bénéficie d'une remise de $12.00 sur les commandes contenant 2 ou plus d'articles
      Reste du monde
      FedEx bénéficie d'une remise de $39.00 sur les commandes contenant 2 ou plus d'articles
      Registered Shipping $9.00 / 7 $16.00 / 21
      Australia
      Registered Shipping bénéficie d'une remise de $9.00 sur les commandes contenant 2 ou plus d'articles
      Reste du monde
      Registered Shipping bénéficie d'une remise de $16.00 sur les commandes contenant 2 ou plus d'articles

      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.
      Mermaid Waters , Australia
      Vérifié
      19214

      • opalgoat
        opalgoat
        Positif

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        Positif

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        Positif

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        Positif

        Well packaged, beautiful gems

      • opalgoat
        opalgoat
        Positif

        Well packaged, beautiful gems

      10%
      Code promo SEDADEALS
      Valable jusque
      4th Mar 2025

      Audit

      Le programme Gemstone Sheriff permet à nos membres de demander un audit sur tout produit, qui est complété par un Gemologist indépendant qui évalue l'exactitude de la description de l'article et des photos.

      Les détails d'expédition

      Expédition:
      $16.00 21 les jours via Registered Shipping
      Expédié depuis:
      Australia

      Options de paiement

      • paypal
      • stripe
      Ce vendeur ajoute 10.00% aux transactions en Australia .

      Aperçu

      Type d'inscription : Standard
      Identifiant du produit : 1342466
      Départs : 13th February 2025 03:35 pm PST
      * Tous les prix sont en USD

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