This is Andamooka matrix that takes a natural polish.This i show we get it from the miner-he takes out the gem pieces and leaves the rest. This is a PART treated rough so if you re shape it you will have to re treat, As with all rough it is a gamble as some will treat well while others wont.

photo taken with the stone wet.

ANDAMOOKA MATRIX ROUGH

We have more of this rough in our sister store SEDA ROUGH OPALS but the site is set up for combing with different sites.



This is a natural opal treated so it becomes black and is called Andamooka matrix opal- ..
You may see black spots which is usually blackened sugar or oil which will come off. The miner has just roughly treated and rubed them down.
Mined in Andamooka Sth Australia

TREATMENT FOR ANDAMOOKA MATRIX WITH SUGAR ONLY.
MATERIALS-BUT YOU CAN TRY OIL IF YOU LIKE-ALSO INFO ONLINE FOR TREATING WITH ACID!
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.
You may have to treat a stone a few times to get the desired result.
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
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