What is blue-colored gold?

The technology of making the blue-colored gold by the goldsmith Antoniassi still remains unsolved. One of the ancient alloys of gold that is colored in black and blue is called Shakudo, a transliteration from Japanese – "shakudō." In its composition, pure gold constitutes only 5%.

Is blue gold oxidized or intermetallic?

It can be an intermetallic like purple gold, or it can have an oxidized coating like black gold. Intermetallic blue gold is made from gold mixed with indium or gallium, but neither formulation yields a strong blue color. Oxidized blue gold is created by subjecting certain types of gold alloys to heat.

Where is blue gold registered in the UK?

[email protected] ©Blue Gold International Limited - Company Number: 12380930 - Registered: One Temple Quay, Temple Back East, Bristol, BS1 6DZ, UK

Who owns Blue Gold International Limited?

The Blue International Group commences operations in sub Saharan Africa, with a collection of UK and US private investors. 2020 (Feb) Blue Gold International Limited (Blue Gold) is formed as part of the Blue International Group to seek long-life high-quality assets to acquire and develop.