Green gold

Description

1) Malleable Gold alloys used in jewelry making. Green gold has a greenish tint that ranges from light to dark due to its relatively high proportion of Silver.

Compositions are:

• Deep green gold (18K): Gold 75%, Silver 15%, Copper 6%, Cadmium 4%
• Soft green gold (18K): Gold 75%, Silver 25% (dark green in color)
• Green gold (18K): Gold 75%, Silver 20%, Copper 5%
• Light green gold (18K): Gold 75%, Copper 23%, Cadmium 2%
• Green gold (15K): Gold 62.5%, Silver 33.3%, Copper 4.2%
• Deep green gold (14K): Gold 58.5%, Silver 37%, Copper 4.5%
• Green gold (14K): Gold 58.5%, Silver 35%, Copper 6.5%

2) A chloroaniline dye complexed with nickel. See Nickel azo green.

Resources and Citations

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.372

• Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994

• A History of Technology, Charles Singer, E.J. Holmyard, A.R. Hall (eds.), Clarendon Press, Oxford, Volume 1: From Early times to Fall of Ancient Empires, 1954