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单词 electrum
释义

electrum


e·lec·trum

E0083000 (ĭ-lĕk′trəm)n. An alloy of silver and gold.
[Middle English, from Latin ēlectrum, amber, from Greek ēlektron.]

electrum

(ɪˈlɛktrəm) n (Metallurgy) an alloy of gold (55–88 per cent) and silver used for jewellery and ornaments[C14: from Latin, from Greek ēlektron amber]

e•lec•trum

(ɪˈlɛk trəm)

n. an amber-colored alloy of gold and silver used in antiquity. [1350–1400; Middle English < Latin < Greek ḗlektron amber]
Thesaurus
Noun1.electrum - an alloy of gold and silverelectrum - an alloy of gold and silver alloy, metal - a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; "brass is an alloy of zinc and copper"

Electrum


electrum

[i′lek·trəm] (metallurgy) A naturally occurring alloy of gold and silver.

Electrum

 

a mineral, a type of native gold with a silver content above 25–50 percent.

Electrum, which contains admixtures of tellurium, copper, antimony, and mercury, is characterized by nonuniform distribution (zonality, decomposition structures of high-silver solid solutions of gold). It crystallizes in the isometric system. It rarely occurs in the form of crystals, usually being encountered in the form of flat dendrites, ranging in area from fractions of 1 mm2 to 10–20 mm2 (sometimes reaching 30–50 mm2), or in the form of irregular microscopic particles. Electrum nuggets weighing as much as 400 g have been found. The color ranges from gold yellow to light yellow, depending on the silver content. The hardness on Mohs’ scale is 2–3, and the density ranges from 1,500 to 1,650 kg/m3.

Electrum, a relatively rare mineral, is encountered in hydro-thermal deposits and quartz and chalcedony-quartz veins in association with carbonates, adularias, sulfides, tellurides, and sulfo salts of silver, lead, and antimony. The smallest inclusion of electrum establishes the gold content of copper pyrite and complex ores. Electrum is a component of gold ores.

REFERENCE

Petrovskaia, N. V. Samorodnoe zoloto. Moscow, 1973.

electrum

A natural alloy of gold and silver, sometimes employed in the decorations of ancient temples and palaces.

electrum


  • noun

Words related to electrum

noun an alloy of gold and silver

Related Words

  • alloy
  • metal
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更新时间:2024/12/23 22:48:40