What is the meaning of Heavy spar?

Native barium sulphate or barite, -- so called because of its high specific gravity as compared with other non-metallic minerals.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). heavy spar. Retrieved September 24, 2026, from http://smartdefine.org/heavy_spar/definitions/2015533
ChicagoWebster's. 2011. "heavy spar" http://smartdefine.org/heavy_spar/definitions/2015533 (accessed September 24, 2026).
HarvardWebster's 2011, heavy spar, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/heavy_spar/definitions/2015533>.
MLAWebster's. "heavy spar" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/heavy_spar/definitions/2015533>
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