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04/07/2021 07:18 pm
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129.00 CTS OPAL ROUGH TREATED [NR148]

SKU
Afmetingen (mm)
45.000 x 44.000 x 10.000mm
Gewicht (cts)
129.000
Type
Rough, Specimen
Kleuren

IMPORTANT NOTE: This item contains fissure filled cavities that may contain glass, cobalt, or other materials. Due to the presence of these materials, this item should be referred to as a composite stone. OPAL MATRIX FROM JUNDAH TREATED 
[SAME TREATMENT APPLIES TO FAIRY OPAL]

This is a natural opal treated so it becomes black- We purchase large quanites of rough material and slab it and then treat it so you can get a idea of how it will face. There is a large amount of wastage in preparing this material. You can cut into earrings ring or pendant stones or leave as specimens but you will have to re treat if you take too much away. Check that there isnt another colour bar in the rough you can expose that may be better than the top.
You may see black spots which is usually blackened sugar which will come off.
Mined in Andamooka Sth Australia
We havve taken the photo of the rough wet!
TREATMENT FOR ANDAMOOKA MATRIX WITH SUGAR ONLY.
MATERIALS
250 grams glucose,white castor sugar,pot or pressure cooker,plastic tweezers.
STEPS
-Pre shape the material


- Thoroughly dry the material in oven sun or hairdryer. You can also soak in aceton 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 DONT 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 if the material is porous
-

POLISHING
 The surface is porous so its hard to get a good finish.
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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Rest van de wereld
FedEx wordt verdisconteerd tot $39.00 bij bestellingen met 2 of meer artikelen
Registered Shipping $9.00 / :dagen dagen $16.00 / :dagen dagen
:land
Registered Shipping wordt verdisconteerd tot $9.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Registered Shipping wordt verdisconteerd tot $16.00 bij bestellingen met 2 of meer artikelen

quality rough
quality rough
The owner Paul Sedawie is the current president of the Opal Association.All my life i have enjoyed collecting minerals and fossils .I have been opal mining and now have a large opalized fossil collection of museum quality.I enjoy visiting mines in different parts of the world and try to buy direct off the miner or as close to the source as possible to give you the best deals.Natural stones/minerals fascinate me so I don�t stock laboratory made stones.I have a few sites here which I head under the Seda group.I believe that your continued business is my business so I hope you enjoy the amazing array and beauty of nature I have to offer.Best Regards Paul Sedawie We have a retail shop/museum at the Gold Coast Opal and Gem Centre 25 surfers av mermaid waters Qld Australia .4218 open mon to sat 10 to 5
:stad land
Geverifieerd
8626e feedback

  • gailkraft
    gailkraft
    Neutrale

    I am sorry to say this, but, the stone just looks like a rock, nothing like the picture.

  • quality rough

    Hi the photo is taken wet ae per description, it is in the rough and needs to be polished or varnished again as per description. Please read before bidding

  • chrisp1
    chrisp1
    Positief

    Paid and shipped - no feedback left after 100 days

  • smoky
    smoky
    Positief

    Paid and shipped - no feedback left after 100 days

  • jasmsu
    jasmsu
    Positief

    Paid and shipped - no feedback left after 100 days

  • tr3y003
    tr3y003
    Positief

    A+ seller great looking piece

  • kylea
    kylea
    Positief

    Paid and shipped - no feedback left after 100 days

Biedingen geschiedenis (1)
gailkraft
Eerder gekocht bij deze verkoper
2 jaar geleden
$1.00

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Audit

Dit product is gecontroleerd door een Gemstone Sheriff en zij hebben het volgende gevonden:
  • Beschrijving Niet nauwkeurig
  • Foto's Nauwkeurig

Comments

Filled Cavities or Fissure/Cobalt listing are no longer accepted on Gem Rock Auctions. Please remove.

Laatst bijgewerkt: datum

Verzendgegevens

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

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Deze verkoper voegt 10.00% belasting toe aan transacties in Australia.

Overzicht

Vermeldingstype : Standard
Product-ID : 1497263
Openingsbod : $1
Begint : 7th June 2021 12:18 pm AEST
Loopt af : 5th July 2021 12:18 pm AEST
* Alle prijzen zijn in:valuta