118 



PHYSIOGRAPHY. 



Celestine. 



Secondary forms. 



Fig. 123. 



Fig. 124. 



Fig. 125. 



Fig. 126. 



Fig. 123, the primary with its acute solid angles replaced 

 by single planes. P on = 128 31'. Fig. 124, the same, 

 in which the terminal plane of the primary is extinguished. 

 o on 0=102 58'; o on o over the summit = 77 2'. Fig. 

 125, like Fig. 124, but having the obtuse solid angles re- 

 placed by planes c?; d on d = 78 28'. Fig. 126, P on 

 J=140 46'; M on z=154 6'. 



Cleavage parallel to the sides of the primary form, high- 

 ly perfect ; that of the bases less distinct. Fracture imper- 

 fectly conchoidal, uneven. 



