MINERALOGY. 33 
SECT. VI. 
II. Friable and Compaft, folida friabilis^. 
Chalk, Creia, 
a, V/hite, Creta alha^ is found in England, 
France, and in the province of Skone in Swe- 
den, in which laft place it is only found adhe- 
rent to flint. In the two firft kingdoms there 
are large ftrata of this fubftance, in which 
flint is imbedded. This feems to indicate, that 
the loofe flints, or thofe difperfed on the fur- 
face of the earth, have been by fome caufes 
carried from their native beds ; but, as yet, 
no one can prove, that chalk and flint are of 
the fame conflituent parts. 
Chalk is, however, a vague name, alfo 
applied to other earths ; whence we hear of 
chalks of various colours : but I do not 
know of any which are of a calcareous na- 
ture, except this only kind here defcribed, 
and of which there are no other varieties, 
otherwife than in regard to the loofenefs of 
the texture, or the finenefs of the particles. 
SECT. VIL 
III. Indurated, or Hard, T erra calcarea indu- ' 
rata, Limeftone, Lapis calcareus, 
A. Solid, of no vifible particles, or not granu- 
lated, particulis impalpahilibus. 
This kind varies in regard to hardnefs and co- 
lour, for inftance, 
a. White, from Hull in England. 
* Solida friahilis feems contradi^lory and inexplicable ; 
however, I fliall ftridlly adhere to the Author’s definitions, 
though never fo faulty, as I only tranilate the work. D. C. 
b. Whitilb 
