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ottrelite

American  
[o-truh-lahyt] / ˈɒ trəˌlaɪt /

noun

Mineralogy.
  1. a brittle mica containing manganese and similar to margarite in physical and chemical properties.


Etymology

Origin of ottrelite

1835–45; < French ottrélite, named after Ottrez, Belgium, where it is found; see -lite


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