Hessian crucible

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(Chem.) a cheap, brittle, and fragile, but very refractory crucible, composed of the finest fire clay and sand, and commonly used for a single heating; - named from the place of manufacture.
See under Crucible.

See also: Crucible, Hessian

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.