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      $44.00 USD
      Geschatte adviesprijs $170.00

      177.40 CTS ANDAMOOKA ROUGH SLAB -IDEAL FOR EARRINGS [BY8991]

      2506
      9

      SKU
      Afmetingen (mm)
      45.000 x 42.000 x 7.000mm
      Gewicht (cts)
      177.400
      Type
      Rough
      Kleuren

      ANDAMOOKA MATRIX ROUGH SLAB
      [SAME TREATMENT APPLIES TO FAIRY OPAL]

      This is a natural  andamooka matrix rough slab.We have  treated only once to show the colour bars. This piece is ideal for cutting earrings as the colour bar is in stripes and you can cut a few sets out and re treat for stunning earrings.  There is a lot of wastage in the bulk rough we buy so we only pre shape for you.
      You can reshaped it or cut into smaller stones but you will have to retreat it.
      Mined in Andamooka South Australia
      TREATMENT FOR ANDAMOOKA MATRIX WITH SUGAR ONLY.
      MATERIALS
      250 grams glucose,white castor sugar,pot or pressure cooker,plastic tweezers.
      STEPS
      -Preshape the material

      - Thoroughly dry the material in oven sun or hairdryer. You can also soak in acetone for 10 minutes to dry the stones out.
      - Put water in pot on low temperature and add glucose and castor sugar. DO NOT BOIL.
      -Place warmed stones into warm solution and cover the stone with liquid.
      -leave on low temperature for 24 hours but DO NOT BOIL.
      -Remove with tweezers and let cool.Use a paper town to wipe away access.
      The next steep is to carbonize the sugar in the stone. Place the stones on a metal or Pyrex dish and place in a kiln at 500 F degrees for one hour.This will burn or carbonize the sugar in the stone.
      _When the stones have cooled clean on a grinding wheel.
      Remember to take all precautions with gloves and mask and clothing with good ventilation.
      This is a natural product so results may vary a bit due to how porous the sandstone is. Some material will have to be treated a few times to get good results. You can also experiment with various temperatures as i like to cook with lower temperatures.
      Remember to have fun!
      WE HAVE TAKEN THE PHOTO WITH THE ROUGH WET.
      In the learning section of opal actions there is details on how to treat with acid and sugar but this sugar only gets good results on porous materiel
      This material is very solid
      -

      POLISHING
       The surface is usually porous porous so its hard to get a good finish but this should give good results and you may be able to polish as is..
      You can polish as a natural stone or coat it with resin to get a better finish.
      We suggest a polymer resin as its stable.inert and nontoxic and dosent yellow..Check out our listings of fairy opal polished in sedaopals.Some of there were polished in china under vacume with a amazing finish.
      We have also used mono-compontent thermo set resin,cynoacrylates and 2 parts resin but these can turn yellow over time. ive even heard of nail polished used and hardened under uv lights.



      The weight and size is app

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      Australia
      Registered Shipping krijgt korting op $9.00 bij bestellingen met 2 of meer artikelen
      Rest van de wereld
      Registered Shipping krijgt korting op $16.00 bij bestellingen met 2 of meer artikelen

      177.40 CTS ANDAMOOKA ROUGH SLAB -IDEAL FOR EARRINGS [BY8991]
      Qld, Australia
      Eigendom van sedaopals

      5%
      Coupon code SEDADEALS
      Geldig tot
      3rd Apr 2025

      Audit

      Met het Opal Sheriff -programma kunnen onze leden een audit voor elk product aanvragen. Deze audit wordt uitgevoerd door een onafhankelijke Gemologist die de nauwkeurigheid van de artikelbeschrijving en afbeeldingen beoordeelt.

      Verzendgegevens

      Verzenden:
      $16.00 21 dagen via Registered Shipping
      Schepen van:
      Australia

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      Overzicht

      Vermeldingstype : Standard
      Product-ID : 905423
      Begint : 13th March 2025 09:15 pm PDT
      * Alle prijzen zijn in USD