Blue gold

Blue Gold is a novel by Clive Cussler and Paul Kemprecos published in 2000.

Blue gold or Blue Gold may also refer to:

See also

Blue Gold is synonym to Water

Taipei American School

Taipei American School (traditional Chinese: 台北美國學校; simplified Chinese: 台北美国学校; pinyin: Táiběi Měiguó Xuéxiào; Wade–Giles: T'ai-pei Mei-kuo Hsüeh-hsiao; abbreviation TAS) is a private independent school with an American-based curriculum located in Tianmu (T'ien-mu), Shilin District (Shih-lin), Taipei City.

Founded in 1949, the school served as a U.S. Department of Defense contract school during the U.S. military presence in Taiwan from the 1950s to 1970s. Upon the termination of diplomatic relations between the United States and the ROC in 1979, TAS was reorganized into a private international school. The school is operated by the Taipei American School Foundation under contract to the American Institute in Taiwan, the United States' quasi-embassy in Taiwan.

Most graduates of TAS go on to attend colleges and universities in United States, although some choose to attend schools in other countries. As required by ROC law, TAS admits only students who hold foreign (i.e. non-ROC) passports.

Colored gold

Pure gold is slightly reddish yellow in color, but colored gold in various other colors can be produced.

Colored golds can be classified to three groups:

Pure 100% gold is 24 karat by definition, so all colored golds are less than this, with the common being 18K (75%), 14K (58%), and 9K (38%).

Alloys

White gold

White gold is an alloy of gold and at least one white metal, usually nickel, manganese or palladium. Like yellow gold, the purity of white gold is given in karats.

White gold's properties vary depending on the metals and proportions used. As a result, white gold alloys can be used for many different purposes; while a nickel alloy is hard and strong and therefore good for rings and pins, gold-palladium alloys are soft, pliable and good for white gold gemstone settings, sometimes with other metals like copper, silver, and platinum for weight and durability, although this often requires specialized goldsmiths. The term white gold is used very loosely in the industry to describe karat gold alloys with a whitish hue. It is a common misconception that the color of the rhodium plating, which is seen on many commercial pieces, is actually the color of white gold. The term "white" covers a large spectrum of colors that borders or overlaps pale yellow, tinted brown, and even very pale rose. The jewelry industry often conceals these off-white colors by rhodium plating.