Definition of milarite in English:

milarite

Pronunciation /mɪˈlɑːrʌɪt/

noun

Mineralogy
  • A hexagonal silicate, K ₂ Ca ₄ Al ₂ Be ₄ Si ₂₄ O ₆₀ ·H ₂ O, that occurs especially in pegmatites as colourless to pale green prismatic crystals and fibrous aggregates.

Origin

1930s; earliest use found in American Mineralogist. From German Milarit from the name of Val Milar, a valley in the Swiss Alps + -it.