...The bones of vertebrate fossils preserved in this bedare often much injured by the gypsum formationwhich covers their surface and often penetrates themin every direction... 
W. E. Webb 「Buffalo Land」
...One positive nesting record: a pair nested for several years (priorto 1891) in southeastern Comanche County on a high gypsum ledge,Goss...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...Elevated openings of thiskind are closed in the usual manner with a rude, single-paneled door,which is often whitened with a coating of clayey gypsum...
Victor Mindeleff and Cosmos Mindeleff 「A Study of Pueblo Architecture: Tusayan and Cibola」
...Ordinary white lead is often mixed with considerable quantities of heavyspar, gypsum, or chalk...
George Field 「Field's Chromatography」
...It is as a powder-bluefor the washtub that ultramarine gets disguised, when it is ground upwith soda-ash, chalk, gypsum, &c...
George Field 「Field's Chromatography」
...Shallowpools of brine, varying from one to three miles in diameter, withlow-wooded and high bare granite islets, were scattered over this vastarea of white mud gypsum and salt...
A C and F T Gregory 「Journals of Australian Explorations」
...40 crossed to the left bank, the valley openingout and the soil improving, being formed by the decomposition of softshales, which contain much gypsum in fine crystals...
A C and F T Gregory 「Journals of Australian Explorations」
...Inseveral places we observed beds of gypsum and fossil shells with otherstrong indications of the existence of coal in the vicinity...
A C and F T Gregory 「Journals of Australian Explorations」
...This at first seemed firm; but, after half-a-mile, thehard crust of salt and gypsum, which formed the surface, gave way andthree of the horses were bogged almost at the same time...
A C and F T Gregory 「Journals of Australian Explorations」
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