What is a foreign substance, either liquid or solid, usually of minute size, inclosed in the mass of a mineral called?
inclusion — (Min.) A foreign substance, either liquid or solid, usually of minute size, inclosed in the mass of a mineral. (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