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$33.00
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20/09/2020 11:11 pm

127.65 CTS NATURAL UNTREATED ANDAMOOKA ROUGH SLAB [BY8942]

SKU
寸法(mm)
43.600 x 43.300 x 6.300mm
重さ (CT)
127.650
タイプ
Rough

ANDAMOOKA MATRIX ROUGH
[SAME TREATMENT APPLIES TO FAIRY OPAL]

This is a natural untreated andamooka rough slab.We have lightly treated a slab to show there is colour as there is a lot of wastage in the bulk rough we buy.
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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seda rough opals
seda rough opals
Welcome to Seda Rough Opals, your gateway to the captivating world of opals. Founded by Paul Sedawie, whose lifelong love affair with opals began at the tender age of 14, we are passionate about bringing you the finest rough opals straight from the source. With over 30 years of experience in the opal industry, Paul and his sons have cultivated relationships with miners worldwide to ensure that every opal in our collection is of the highest quality. From Lightning Ridge to international gem shows, our opals are hand-selected with care and expertise. Whether you're a seasoned opal enthusiast or a novice collector, Seda Rough Opals offers a diverse range of rough stones to suit every taste and budget. Each opal is a natural work of art, waiting to be transformed into a stunning piece of jewelry or cherished as a unique addition to your collection. Join us on a journey of discovery as you explore the raw beauty of opals at Seda Rough Opals. Let us share with you the wonder and excitement of uncovering these precious gemstones, straight from the earth to your hands. Welcome to Seda Rough Opals, where the adventure begins.
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  • embergem
    embergem
    ポジティブ

    They came faster than expected and are beautiful! Thank you!

入札履歴 (1)
embergem
以前にこの販売者から購入した
3年前
$32.00

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発送詳細

配送:
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発送元:
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この出品者は、Australia での取引に 10.00% 税金を追加します。

概要

リストタイプ : Standard
製品番号 : 904048
推定希望小売価格 : $120.00
入札の開始 : $32
始まります : 21st September 2020 01:25 pm AEST
終わり : 21st September 2020 04:11 pm AEST
* すべての価格は:通貨で表示されます