Bible Dictionaries
Pyrochlore

Webster's Dictionary

(n.) A niobate of calcium, cerium, and other bases, occurring usually in octahedrons of a yellowish or brownish color and resinous luster; - so called from its becoming grass-green on being subjected to heat under the blowpipe.

Bibliography Information
Webster, Noah. Entry for 'Pyrochlore'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/pyrochlore.html. 1828.