gypsa
English edit
Etymology edit
From Latin gypsa, plural of gypsum.
Noun edit
gypsa
- plural of gypsum
- 1770, “I. Earths”, “1. Calcareous”, in Gustav von Engestrom, transl., edited by Emanuel Mendes da Costa, An Essay Towards a System of Mineralogy, London: Printed for Edward and Charles Dilly, translation of original by Axel Fredric Cronstedt, “B. (Sect. XIII) United with the acid of vitriol. Gypſum”, page 22:
- When a ſmall quantity of any gypſum is melted together with borax, the glaſs becomes colourleſs and tranſparent; but I have found ſome ſorts of alabaſter and ſparry gypſa that, when melted in ſome quantity with borax, yield a fine yellow tranſparent colour, reſembling that of the beſt topaſes.
- 1771, J. Hill, “Native Fossils”, in Fossils Arranged according to their Obvious Characters; […], London: Printed for R. Baldwin, […]; and P. Elmsly, […], “Class II. Selenite. Selenites”, page 33:
- We find it tranſparent, of various Figures; but compoſed all of united Rhombs: and when its concretion has been interrupted, we ſee it in the forms of granulated, fibrous, or ſcaly maſſes, and call them Gypſa, or Plaiſter Stones.
- 1797, “GYPSUM, Plaster-stone, or Alabaſter”, in Encyclopædia Britannica; or, a Dictionary of Arts, Sciences, and Miscellaneous Literature; […], 3rd edition, volume VIII, Edinburgh: Printed for A. Bell and C. Macfarquhar, page 257, column 2:
- The Iſle of Sheppey affords a kind of ſpar-like gypſa, of a fibrous nature, and always accreting like the radiations of a ſtar on the ſeptaria, and thence called ſtella ſeptarii.
- 1825, Granville Penn, “Notes”, “IV. On the Numerous Revolutions of M. Cuvier”, in A Comparative Estimate of the Mineral and Mosaical Geologies, 2nd edition, volume II, London: J. Moyes, for James Duncan, page 376:
- The gypsum and rock-salt are found also in soils long posterior to the sand-stone with clay.—We have seen, that M. Steffens considers the gypsa of Lower Germany as making part of the chalky formation; and the salt-waters, which issue in that country, are referred to these gypsa and to the salt which they contain.
- 1913, The Mineralogical Magazine and Journal of the Mineralogical Society, volume XVI, page 333, column 1:
- IV. Alabasters (Gypsa or Plaister stones)
- 1984, Guidebook, International Geological Congress, […], page 84:
- 17. Gypsa developed from anhydrites, grey gypsum-bearing limestones with bands of sandstones. The layer is covered with low-angle, turfy talus. Gypsa are white, grey, pink. Sandy limestones are light-grey. 22 m.
- 1988, Karst Hydrogeology and Karst Environment Protection: Proceedings of the 21st Congress of the International Association of Hydrogeologists, […], pages 361, 362:
- The gypsa are overlying conductive rocks which could correspond to a flysch formation with prevailing pelitic fraction. It seems therefore possible that the gypsa were squeezed out of the Tuscan nappe front and advanced towards NE together with the allochthonous covers. […] They are the consequence of a very pronounced dissolution process in progress, affecting the deep gypsum layers. The river-bed dolines are visible every year in the September to November period, in relation with the minimum aquifer level in the gypsa after the summer drought.
Anagrams edit
French edit
Pronunciation edit
Verb edit
gypsa
- third-person singular past historic of gypser