heavy spar : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: heavy spar	by the DICT Development Group
5 results for heavy spar
From WordNet (r) 3.0 (2006) [wn]:
heavy spar n a white or colorless mineral (BaSO4); the main source of barium Synonym(s): heavy spar, barite, barytes, barium sulphate
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
{Permanent way}, the roadbed and superstructure of a finished railway; -- so called in distinction from the contractor's temporary way. {Permanent white} (Chem.), barium sulphate ({heavy spar}), used as a white pigment or paint, in distinction from white lead, which tarnishes and darkens from the formation of the sulphide. Syn: Lasting; durable; constant. See {Lasting}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Barite \Ba"rite\, n. (Min.) Native sulphate of barium, a mineral occurring in transparent, colorless, white to yellow crystals (generally tabular), also in granular form, and in compact massive forms resembling marble. It has a high specific gravity, and hence is often called {heavy spar}. It is a common mineral in metallic veins.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Barytes \Ba*ry"tes\, n. [Gr. [?] heavy: cf. Gr. [?] heaviness, F. baryte.] (Min.) Barium sulphate, generally called {heavy spar} or {barite}. See {Barite}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Heavy spar \Heav"y spar`\ (Min.) Native barium sulphate or barite, -- so called because of its high specific gravity as compared with other non-metallic minerals.