TAB. LXII. 



CALX carbonata ferrifera, var. lenticularis 



Spathose Iron Ore; Lenticular crystallized 

 Carbonate of Lime. 



Class 2. Earths. Order I. Homogeneous. 

 Gen. 2. Lime. Spec. 4. Carbonate of Lime. 



"Syn. Calcareous or Sparry Iron Ore. Kirw. v. 2. 190. 



Spathose Iron Ore. Bab. 201. 



Spathiger eisenstein. Emmerl. v. 2. 329. 



Chaux carbonatee ferrifere lenticulaire. Haiiy, v. 2. 



178. 

 Mine de fer spathique. De Lisle, v. 2. 281. 



1 his singular group of spathose iron ore, as it is often called 

 when gathered with the iron ores of Devonshire, may with 

 as. much propriety be called a calcareous spar. The crys- 

 tallization is found to be as it were intermediate between the 

 latter and the former. The top left hand figure shows the 

 primitive rhomb somewhat flattened, formed by aggre- 

 gations of the primitive rhombs of calcareous spar. See 

 Tab. 2, 3, and 13. The right hand upper figure differs only 

 in having the apex truncated, and the edges having rounded 

 facets. The lower left hand figure shows the same with the 

 rounded facets having become the principal faces of the 

 crystal. It is altogether rather flatter and rounder. The 

 lower figure on the right hand is still flatter and rounder, and 

 approaches more to the irony appearance. 

 3 



