Webster’s Revised Unabridged Dictionary · 1913
Blackband
Black′band′ (·bănd′), n. (Min.) An earthy carbonate of iron containing considerable carbonaceous matter; — valuable as an iron ore.
Webster’s Revised Unabridged Dictionary · 1913
Black′band′ (·bănd′), n. (Min.) An earthy carbonate of iron containing considerable carbonaceous matter; — valuable as an iron ore.