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$29.00
Current Bid
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Closed
04/10/2022 10:00 pm

25.5 CTS ANDAMOOKA MATRIX UNTREATED SLAB-OLD COLLECTION

SKU
BZ1573
Dimensions (mm)
32.000 x 18.000 x 8.000mm
Weight (cts)
25.500
Type
Rough
Shape
Freeform
Colours

ANDAMOOKA MATRIX ROUGH


This is a natural untreated andamooka rough that has been sliced. This is old material that that was sliced but kept in a large collection for many years.The collection had untreated and treated stones. You can have the fun treating it. Some times you might have to treat a few times and you might like to try oil instead of sugar as listed below.

This material takes a good natural polish.
You can reshaped it or cut into smaller stones.
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
-

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Australia
Express Shipping is discounted to $12.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $39.00 on orders with 2 or more items
Registered Shipping $9.00 / 7 days $16.00 / 21 days
Australia
Registered Shipping is discounted to $9.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $16.00 on orders with 2 or more items

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.
Lightning Ridge, Australia
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Bids History (1)
utahjoe
Purchased from this seller previously
1 year ago
$28.00

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Shipping Details

Shipping:
$16.00 21 days via Registered Shipping
Ships from:
Australia

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Overview

Listing Type : Standard
Product ID : 1222371
Starting Bid : $28
Starts : 1st October 2022 11:51 am AEST
Ends : 5th October 2022 03:00 pm AEST
* All prices are in USD