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tephroite

[ tef-roh-ahyt ]

noun

  1. a mineral, silicate of manganese, Mn 2 SiO 4 , occurring in orthorhombic crystals.

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Word History and Origins

Origin of tephroite1

1865–70; < German Tephroit < Greek tephró ( s ) ash gray + German -it -ite 1

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tephrochronologyTepic

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