Meaning of pinakiolite in English:

pinakiolite

Pronunciation /pɪˈnakɪəlʌɪt/

noun

Mineralogy
  • A mineral that is a borate of manganese and magnesium, Mg₂ MnO₂ (BO₃), occurring as tabular black crystals of a metallic appearance that belong to the monoclinic system.

Origin

Late 19th century; earliest use found in American Journal of Science. From ancient Greek πινάκιον small tablet (from πινακ-, πίναξ + -ιον, diminutive suffix) + -lite, after German Pinakiolit.