manganosite

noun

man·​ga·​no·​site
ˌmaŋgəˈnōˌsīt,
manˈganəˌ-
plural -s
: a mineral MnO consisting of manganous oxide occurring in small emerald green octahedrons that turn black on exposure (hardness 5–6, specific gravity 5.18)

Word History

Etymology

German manganosit, from mangan- + connective -s- + -it -ite

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Dictionary Entries Near manganosite

Cite this Entry

“Manganosite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/manganosite. Accessed 19 Mar. 2024.

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