What is a green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium called?
roscoelite — A green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00