Subsurface Laboratory Methods 



251 



D I C KIT E 



iqo 



Degrees Centigrade 

 300 §50 700^ 



r-¥ 



Freiburfl.Germony | 1 1 T 



(Nocrltt) 



Son Juonito, 



Mexico (A) I I I T 



Son Juonito, 



Mexico (B) 



Schuylkill Co, 

 Pennsy I vonio 



Red Mounlain, 

 Colorado 



(100-200 ll«lll) 



Red Mounloin, 

 Colorado 



1200-300 Mtik) 



Red Mounloin, 

 Colorodo 



k< 300 Hxk) 



Si. Peter't Dome, | 1- 



Colorodo 



100 



_J — I I I L_ 



300 500 



I I 



700 900 



Dtgrees Centigrode 



.1.1 



1100 



Figure 104. Thermal curves of dickite from several localities. Curves 5, 6, and 7 

 indicate effect of grinding on dickite from Red Mountain, Colorado. 



