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piedmontite

[ peed-mon-tahyt ]

noun

  1. a mineral, similar to epidote but containing manganese: found in schists and manganese ores.

piedmontite

/ -mən-; ˈpiːdmɒnˌtaɪt /

noun

  1. a dark red mineral occurring in metamorphic rocks: a complex hydrated silicate containing calcium, aluminium, iron, and manganese. Formula: Ca 2 (Al,Fe,Mn) 3 (SiO 4 ) 3 OH

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Word History and Origins

Origin of piedmontite1

From German, dating back to 1850–55; Piedmont, -ite 1

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Word History and Origins

Origin of piedmontite1

C19: from Piedmont in Italy

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Example Sentences

Amongst the latter, in Shikoku, there is an extremely interesting rock consisting largely of piedmontite.

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Piedmontesepied noir

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