470 University Geological Survey of Kansas. 
> bes nie 45 
0081 2 0%, 554) 
ARoins _ 
a0 % 4% 
Representing Total Calcite Faces on Crystal Forms Described. 
SPHERICAL PROJECTION OF THE FORMS. 
Figure 90 is aspherical projection of the forms observed on 
the calcite crystals of the district. 
Zones containing the various rhombohedrons and the one 
stretching between two faces of the unit rhombohedron 
p:, +R are conspicuous from the great number of planes 
lying within them, which is true of the calcites of most other 
localities. 
DESCRIPTION OF FORMS. 
No. 1.—Basal Pinacoid. Though not common, this form is 
frequently seen. It is the predominant form on crystals of 
type ll. Its surface is dull and its combination edges with 
other forms not sharply defined. Type 10 from Joplin, 11 
