How to make a mini-refining and a form of gold assays ?

Par Pierre|2015-12-04T23:00:00+01:00décembre 4th, 2015|News|

The refined gold as all precious metals is carried out using « aqua regia », an acid which is a mixture of nitric and hydrochloric acid. Lire la suite […]

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About fakes and counterfeit krugerrand

Par Pierre|2020-05-20T03:07:20+02:00décembre 4th, 2015|News|

[vc_row][vc_column][vc_column_text] For a number of years, false Krugerrands were produced and manufactured in China. Made mostly with a core of tungsten and gold plated. Lire la suite […]

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How is a gold buyout in native, nugget or african flakes form ?

Par Pierre|2018-08-26T15:29:00+02:00décembre 4th, 2015|News|

At Orobel for several years, we regularly buy gold exported from Africa. Lire la suite […]

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What can we forecast for the gold spot price in 2016 ?

Par Cavallera|2018-08-26T15:29:00+02:00décembre 4th, 2015|News|

Gold spot price has fallen during the first half of 2015, and has continued to decline in July. But what are the predictions for the price of an ounce of gold for this year end and for the year 2016 ? Lire la suite […]

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Orobel’s Banking services

Par Cavallera|2018-08-26T15:29:02+02:00décembre 4th, 2015|News|

Orobel also offers delivery services for private banks or private equity funds wishing to buy and invest in gold. Lire la suite […]

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How platinum and palladium spot price is fixed ?

Par Cavallera|2018-08-26T15:29:05+02:00décembre 4th, 2015|News|

The London Platinum and Palladium Market (LPPM) is the largest clearinghouse will counter for platinum and palladium exchange. She is responsible for listing the course and the price of platinum and palladium since 1989. Lire la suite […]

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Evolution of the design of the Australian Nugget gold coin

Par Cavallera|2015-12-04T23:00:00+01:00décembre 4th, 2015|News|

Such as the Chinese Panda gold coin, the Australian Nugget gold coin has seen its design profoundly evolve over the years. It is among the parts of a fine ounce and the most pure in the world. Lire la suite […]

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How a cupellation gold or fire assay works ?

Par Pierre|2015-12-04T23:00:00+01:00décembre 4th, 2015|News|

The method is more accurate, with an accuracy of 2 to 3 parts per ten thousand (0.02%), is a method sometimes called cupellation to test feu.La Cupellation involves taking a small sample of object, usually a hole made in a crude bullion. Lire la suite […]

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The origin of gold

Par Pierre|2021-04-30T11:47:12+02:00décembre 4th, 2015|News|

Titillated by my many miners friends, I have to try to clarify their ideas about the origin of gold. One of the first qualities of gold miners, is toughness. Lire la suite […]

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