140 Hillebrand and Ransome — Camotite and Associated 



the acid anhydrides CO a , MoO„ and S0 3 , less what is needed 

 to offset PbO and CnO. 



Camotite Analyses Recalculated. 





l-a 



1-6 



I-c 



U-a 



II-6 



III 



V 2 6 .... 



20-72 



21-09 



20-12 



20-54 



19-85 



2062 



Poo 5 



•90 



•40 



•51 



•06 







As 3 5 





•29 











TTO3 



61-53 



60-06 



60-55 



61-44 



59-31 



58-75 



CaO 



3-03 



2-77 



3-28 



2-11 



210 



4-70 



BaO(SrO) . 



1-03 



•83 



•83 



322 



3-64 



•83 



MgO 



•25 



•23 



■31 



•16 



•19 



•20 



K 2 



7 31 



7-73 



8-39 



6-21 



5-80 



4-33 



NaoO .... 



•15 



•10 



•09 



•15 



•02 



•03 



H 2 O-105 



2-72 



2-98 



2-36 



3-59 



513 



5-30 



HoO + 105° 



2-36 



3-52 



356 



2-52 



396 



5-24 





100-00 



100-00 



100-00 



10000 



100-00 



100-00 



V 2 5 .... 

 P 2 5 



AS005.--. 

 uo 3 



CaO 



BaO(SrO) . 



MgO 



K 2 



Na 2 .... 

 HoO-105 1 

 H 2 O + 105' 



l-a 



1133 



53 |ll96 



2140 

 541 



68 !-i 

 62 

 776 ) 



33 \ 

 1511 

 1311 



[-809 



1-6 



1208 



28 



12 



2088 



495 



54 



57 

 826 ) 



22 f 

 1656 

 1956 



1248 



606 



848 



Ratios. 

 I-c 



1101 

 36 



f» 



37 



2105 



586 



54^-71 



78 



891 



20 



1311 



1978 



911 



II-a 



1124 ) 



1128 



2136 

 377 

 210 5- 627 



40 

 659 



33 

 1994 

 1400 



692 



II-6 



1081 



2062 

 375 



238 J- 66 



47 



616 



4 



2850 



2200 



620 



III 



1128 



2043 

 839 ) 



54 [ 943 



50 J 

 460 



466 



2944 

 2911 



These ratios lead to the following empirical formulas, in 

 which only the water given off above 105° is considered. 

 Since the water is wholly removable below 350° it is regarded 

 as water of crystallization and not of constitution. 





R' 



R" 



R v 



U 



O 



H 2 



l-a .. 



1618 



671 



2392 



2140 



13880 



1311 



l-b .. 



1696 



606 



2496 



2088 



13958 



1956 



I-c. 



1822 



718 



2274 



2105 



13629 



1978 



II-a. 



1384 



627 



2256 



2136 



13367 



1400 



ll-b 



1240 



660 



2162 



2062 



12871 



2200 



III.. 



932 



943 



2256 



2043 



13178 



2911 



If it be assumed that the bivalent elements offer the most 

 accurate determinations, the above ratios may be reduced to 

 the following simpler terms on that basis : 





R' 



R" 



R v 



U 



O 



H 2 



l-a .... 



.. 2'41 



1 



3-56 



3-19 



20-68 



1-95 



l-b ... 



... 2-80 



1 



4-12 



3-45 



23-03 



3-23 



I-c ... 



. .. 2-54 



1 



3-17 



2-93 



18-98 



2-75 



II-a .. 



... 2-21 



1 



3-60 



3-41 



21-32 



2-23 



II-6... 



... 1-88 



1 



3-27 



3-12 



19-50 



3-33 



Ill ... 



... -99 



1 



2-39 



2-16 



13-98 



3-09 



