polianite

English

Etymology

Ancient Greek to become grey.

Noun

polianite (countable and uncountable, plural polianites)

  1. (mineralogy) manganese dioxide, occurring in hard tetragonal crystals

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “polianite”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)

Further reading
  • David Barthelmy (1997–2024) “Polianite”, in Webmineral Mineralogy Database.
  • “polianite”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2024.

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