Black Opal Cut and ShapeTypically, the shape and cut of a finished bla terjemahan - Black Opal Cut and ShapeTypically, the shape and cut of a finished bla Bahasa Indonesia Bagaimana mengatakan

Black Opal Cut and ShapeTypically,

Black Opal Cut and Shape

Typically, the shape and cut of a finished black opal will be dependent on the original opal rough. Black opals are most often cut into oval cabochons, but other shapes are also very popular, such as teardrops and trillion shapes. Most black opals are cut with low domes because they have rather thin color bars. If the opal color bar is too thin, it may be unfeasible to fashion any domed surface at all from the stone.
Black Opal Treatment

Ethiopia is a major source for treated black opal. The treatment used on Ethiopian opal is an old smoking method which allows carbon to deeply penetrate the opal and enhance its color. There have been recently reported enhancements involving a combination of heat and sugar; stones are soaked in a sugar solution and then dipped in sulfuric acid. They are then slowly heated to produce a darker body tone.

Another treatment that has been discovered on some black opal is coating of the gem. This is not as common as heating, but nevertheless, consumers should be aware of this possible enhancement, along with the possibility of impregnation with polymer, resin or oil that is done to stabilize opal.
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Black Opal Cut and ShapeTypically, the shape and cut of a finished black opal will be dependent on the original opal rough. Black opals are most often cut into oval cabochons, but other shapes are also very popular, such as teardrops and trillion shapes. Most black opals are cut with low domes because they have rather thin color bars. If the opal color bar is too thin, it may be unfeasible to fashion any domed surface at all from the stone.Black Opal TreatmentEthiopia is a major source for treated black opal. The treatment used on Ethiopian opal is an old smoking method which allows carbon to deeply penetrate the opal and enhance its color. There have been recently reported enhancements involving a combination of heat and sugar; stones are soaked in a sugar solution and then dipped in sulfuric acid. They are then slowly heated to produce a darker body tone.Another treatment that has been discovered on some black opal is coating of the gem. This is not as common as heating, but nevertheless, consumers should be aware of this possible enhancement, along with the possibility of impregnation with polymer, resin or oil that is done to stabilize opal.
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Black Opal Cut dan Bentuk Biasanya, bentuk dan dipotong dari opal hitam selesai akan tergantung pada opal kasar aslinya. Opal Hitam yang paling sering dipotong menjadi cabochons oval, namun bentuk lain juga sangat populer, seperti air mata dan bentuk triliun. Kebanyakan opal hitam yang dipotong dengan kubah rendah karena mereka memiliki bar warna agak tipis. Jika bilah warna opal terlalu tipis, mungkin tidak layak untuk fashion permukaan kubah sama sekali dari batu. Black Opal Pengobatan Ethiopia merupakan sumber utama untuk diobati opal hitam. Perlakuan yang digunakan pada opal Ethiopia adalah metode merokok tua yang memungkinkan karbon untuk sangat menembus opal dan meningkatkan warna. Ada baru-baru ini melaporkan peningkatan yang melibatkan kombinasi dari panas dan gula; Batu-batu tersebut direndam dalam larutan gula dan kemudian dicelupkan ke dalam asam sulfat. Mereka kemudian perlahan dipanaskan untuk menghasilkan nada tubuh lebih gelap. Pengobatan lain yang telah ditemukan pada beberapa opal hitam lapisan permata. Hal ini tidak biasa seperti pemanasan, namun demikian, konsumen harus menyadari peningkatan ini mungkin, bersama dengan kemungkinan pembuahan dengan polimer, resin atau minyak yang dilakukan untuk menstabilkan opal.






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