89 



TAB. CXLVIL 



CALX carbonata, dura. 

 Hard Carbonate of Lime 



Class 2. Earths. Order 1. Homogeneous. 



Gen. 3. Calx. Spec. 5. Carbonate of Lime. 



Div. 1, Crystallized*. 



Syn. A new species of hard Carbonate of Lime. 

 Bournon, Phil. Trans. 1 803. 325. 



Great Britain is highly indebted to the Right Hon. 

 Charles Greville's mineralogical ardour, for one of the most 

 complete and scientific collections in the world; and I am 

 happy to congratulate my friends on his generosity in 

 readily allowing me the free use of it, as nothing can now 

 be wanted, as far as is at present known, to complete the 

 British history of this kingdom of Nature, with my own 

 collection and those of other friends already mentioned. 



The present specimen from Scotland is a great curiosity 

 to the mineralogical world, and was first noticed in Mr. 

 Greville's collection by the Count de Bournon, who has 

 given an excellent account of it in Phil. Trans. 



We understand that only a few specimens have been 

 preserved, which were collected in the neighbourhood of 

 Glasgow. 



The structure at first sight has something new in it; but it 

 might be taken for Carbonate of Lime, which it really is, 



* In arranging this variety, we would place it after all the other crystals. 



