fayalite

noun fa·yal·ite \fəˈyäˌlīt, fīˈä-\

Definition of fayalite

plural

-s

  1. :  a mineral Fe2SiO4 consisting of an iron silicate isomeric with olivine and occurring in crystals or massive (specific gravity 4.1)

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Origin and Etymology of fayalite

German fayalit, from Fayal, island in the Azores + German -it -ite


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