28.60 CTS FAIRY OPAL ROUGH FROM QUEENSLAND [FO26 ]

3820

存货单位
尺寸（毫米）: 40.000 x 27.000 x 8.000mm
重量 (cts): 28.600
类型: Rough
颜色

FAIRY OPAL ROUGH
It is precious opal embedded in the natural sandstone and mined in Queensland Australia.Only by carbonizing it does it become like black opal..The treatment is usually oil and sugar with no acid being used.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..
We have also used mono-compontent thermo set resin,cynoacrylates and 2 parts resin but these can turn yellow over time.

We have taken the photo with the stone wet.

The weight and size is app
It is similar in appearance to Honduran opal.

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存货单位
尺寸（毫米）: 40.000 x 27.000 x 8.000 mm
重量 (cts): 28.600
类型: Rough
颜色

We have taken the photo with the stone wet.

The weight and size is app
It is similar in appearance to Honduran opal.

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