guhrn.
Mineralogy.
A loose earthy deposit from water found in the cavities of rocks.
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the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > light or loose soil > type of
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1686 R. Plot Nat. Hist. Staffs. iv. 160 I take it to be the Gur of the Adeptists, i.e. the matter of Metalls before it be coagulated into a Metallic form... [I]t might be the Gur of Lead.
1753 Chambers's Cycl. Suppl. Gur, a word used to express a fluid matter looking like milk, but reduced sometimes, by evaporation, to the consistence of honey, and appearing in form of a white sediment. It always contains more or less silver, and is common in the mines of Sweden, and in some other places.]
1770 G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. 23 Gypseous Earth, properly so called, Guhr.
1839 A. Ure Dict. Arts 185 Guhr, lac-lunæ, and fossil meal.
1852 T. Ross tr. A. von Humboldt Personal Narr. Trav. Amer. I. ii. 78 (note) The siliceous gurh [sic] of the volcanoes of the Isle of France.
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2021).
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