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Meaning of richardsollyite | Babel Free

Noun CEFR C2

Definitions

A grey-black monoclinic mineral containing astatine, lead, sulphur and thallium.

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

Richardson Richardson County Richardson number Richardson's ground squirrel Richardson's owl Richardson's theorem