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Gold-filled jewelry. Gold-filled is a type of composite material. Composites are formed from two or more constituent materials with different properties that, when combined, create a new material with enhanced properties. [1] Gold-filled material is made by bonding a layer of gold alloy to a base metal core (typically brass, but sometimes ...
Granulation is a jewellery manufacturing technique whereby a surface is covered in spherules or granules of precious metal. The technique is thought to have its origins in Sumer about 5,000 years ago. This technique then spread to southern Europe during the orientalizing period, also through the role of Phoenicians, who had founded colonies in ...
Jewellery. Jewellery (or jewelry in American English) consists of decorative items worn for personal adornment such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes. From a western perspective, the term is restricted to durable ornaments, excluding flowers for example.
Aim to get 90 to 95% of the spot price when selling gold bars or coins, and 70 to 80% of melt value for jewelry and other items. A karat is a unit of measure for the fineness of gold. For example ...
Cloisonné. Pectoral of Senusret II, from his daughter's grave, using shaped stones rather than enamel. Cloisonné inlays on gold of carnelian, feldspar, garnet, turquoise, lapis lazuli, 1880s BC. Chinese Ming Dynasty cloisonné enamel bowl, using nine colours of enamel. Cloisonné (French: [klwazÉ”ne]) is an ancient technique for decorating ...
Gold is a chemical element with the chemical symbol Au (from Latin aurum) and atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals.
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