Definition of neotesite in English:

neotesite

noun

Mineralogy
rare
  • A reddish hydrated silicate of manganese and magnesium.

Origin

Late 19th century; earliest use found in American Naturalist. From German Neotesit from ancient Greek νεοτήσιος youthful (on account of the mineral's supposed formation later than other manganese silicates; from νεότης youth + -ήσιος, suffix forming adjectives) + German -it.

Pronunciation

neotesite

/ˌniːə(ʊ)ˈtiːzʌɪt/