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chrysocolla

[kris-uh-kol-uh] /ˌkrɪs əˈkɒl ə/
noun
1.
a mineral, hydrous copper silicate, CuSiO 3 ⋅2H 2 O, occurring in compact, green or blue masses, sometimes used in ornaments.
Origin
1590-1600
1590-1600; < Latin chrȳsocolla < Greek chrȳsókolla gold solder, equivalent to chrȳso- chryso- + kólla glue (cf. collage)
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for chrysocolla
  • Chalcocite and chrysocolla occur at this quarry in small, unimportant amounts.
  • chrysocolla and malachite are developed in partly oxidized facies.
Encyclopedia Article for chrysocolla

a silicate mineral, hydrated copper silicate, CuSiO32H2O, formed as a decomposition product of copper minerals in most copper mines, especially in arid regions. It occurs as crusts or masses in the upper parts of copper-ore veins where the copper minerals have been altered by water containing dissolved silica. Specimens with a fine green or bluish-green colour may be used as ornamental stones. For detailed physical properties, see silicate mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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