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riebeckite

American  
[ree-be-kahyt] / ˈri bɛˌkaɪt /

noun

  1. an amphibolic mineral, silicate of sodium and iron, occurring usually in feldspathoid rocks.


Etymology

Origin of riebeckite

1885–90; named after Emil Riebeck (died 1885), German explorer; -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is a blue fibrous mineral belonging to the amphibole group and closely related to riebeckite; chemically it is an iron sodium silicate.

From Project Gutenberg

Its essential constituents are felspar, quartz and riebeckite—a soda amphibole.

From Project Gutenberg

This island is composed of micro-granite with riebeckite, of great interest on account of the rare occurrence of this type in Britain.

From Project Gutenberg