Lapidary Hobby 428 gram, 2140 carat total Winton Fairy Opal Rough Piece

Please see below for details. L ovely Piece of semi treated fairy opal rough. Stone require cutting and polishing to finish. Pictures were taken while the stones were wet to show potential. Nice stone with lovely sparkle of green and blue opal matrix. Hows great color and contrast. It has been semi-treated, only the outside has been blackened. May need re-treatment after cutting. Stone is not finished, it requires further cutting and polishing. Please note that as it is porous material the end polish result will yield a matte finish. To get a mirror finish, resin would achieve this. Please keep in mind that pictures have been enlarged to show detail. Stone has been treated, please see details below. Will need re-treatment after the stone is polished if desired. Please see details below about treatment. Photos were taken under white desk lamp light.

The stone was wet when the pictures were taken in order to show its potential, it will not look this shiny or bright coloured when you receive it, until you wet it again or polish it up. Please note: This opal is in the rough state and it is common for natural stones to contain inclusions and/or fractures. Origin: Winton opal fields, Queensland. Carat weight total: 2140 carats or 428 grams. Stone Size approx: 428 grams 79.6 x 93 x 67.1 mm at longest points.

Fairy opal is basically a sandstone base rock impregnated with tiny pieces of precious opal. Because the sandstone is very pale it is often difficult to see the play of opal colour in the stone and hence a method of darkening the sandstone background was developed so the colour of the opal could be seen.

These stones have been treated or'cooked' in order to darken the base to bring forth the beautiful opal colour. The treatment does not change the opal or stone in any way other than darkening it to give it an enhanced colour flash. The method used is to cook the stones is heating in oil. The oil penetrates the pores of the sandstone and the heat burns the oil then carbonises it thus darkening the stone. This unfortunately cannot be avoided. All customers will receive a 10% discount on eligible items when purchasing 5 separate items/individual listings or more in a. Low price starting auctions will be clearly stated and outlined in their description. As heavier parcels will have a higher cost. Please keep in mind for safe and secure travel items need to be packaged and wrapped and this additional weight. All parcels are sent with tracking numbers. In the instance your order exceeds the 20 kg limit, we will need to send your order over multiple packages.

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The item "Lapidary Hobby 428 gram, 2140 carat total Winton Fairy Opal Rough Piece" is in sale since Wednesday, November 13, 2019. This item is in the category "Collectables\Rocks, Fossils, Minerals\Crystals". The seller is "123hartanto" and is located in Brisbane, QLD. This item can be shipped worldwide.

Material: Fairy Opal
Region: Queensland