PHOSPHATES ;:,:, 



Koninckite, FeP<) 4 .:HI,< ) ; Yellow; II. :;.:, ; (, 



F. 2.5; Radial.-,!. 



Cacoxenite, Fe^OH I'".^H 2 0; Golden-yellow; 



Silky; H. 3-4; G. 3.88 I 2.6\ Radiated. 



/>'. Tin i-oiist<il /r.s/V/w /* not IIHHJ/ 



1. The borax bead sho\\> maimat: 



Fairfieldite. ( 'a,Mn l' ),),.2 ll.i ) ; White togreeni>l. 



white; Cl. pinaroidal; H. 3.5; G. 3.15; F. 4-4: 



VI. 

 Reddingite, Mn 3 (PO 4 ) 2 .3H 2 (); Pale rose to brown; II. 



3-3.5; G. 3.10; F. 2.5-3; IV. 



2. The S. Ph. head in R. F. i.s green (uranium). 



AUTUNITE, Ca(UO 2 ) 2 (PO 4 ) 2 .8 H 2 O ; Lemon, to sul- 

 phur-yellow; Cl. basal; H. 2-2.5 ; G. 3.12; F. :i ; 

 IV ; Tabular, p. 520. 



Uranocircite, Ba(U0 2 ) 2 (PO 4 )2.8 H 2 O ; Yellowish gre.-n : 

 Cl. basal; H. 2-2.5 ; G. 3.53; F. 3?; IV; Tabular. 



Phosphuranylite, (UO 2 ) 3 (PO 4 ) 2 .6 H 2 O ; Deep lenmn- 



yellow; Pearly; F. 3-4?; IV. 



C. The concentrated HCl solution yields a precipitate with sulphuric 

 acid (calcium). 



1. Yields little or no water. 



APATITE, Ca 4 (CaF)(PO 4 ) 3 ; Green, blue, brown, white ; 

 Cl. basal ; H. 5 ; G. 3.15; G. 5 5.5 ; III ; p. 508. 



2. Yields water in the closed tube. 



HERDERITE, Ca(Be(OH.F)]PO 4 ; White, pale green 

 or yellow; H. 5 ; G. 3.00; F. 4 ; V. 



Hydro-herderite, Ca(Be.OH.F)PO 4 ; White, yellow, pale 

 green ; H. 5 } G. 2.95 ; F. 4 ; V. 



Cirrolite, (Ca.OH)3Al 2 (PO 4 ) 3 ; White, pale yellow; H. 

 5-6 ; G. 3.08 ; F. 4 ; Massive. 



Monetite, HCaPO 4 ; Yellowish white; Cl. pinacoidal ; 

 H. 3.5; G. 2.75; F. 3; VI. 



Collophanite, Ca.i(PO 4 ) 2 .H 2 O ; Whitr. yellow; Dull; 

 H. 2-2.5 ; G. 2.70 ; F. 4.5 ; Amorphous. 



Tavistokite, Ca 3 Al 2 (OH) 6 (PO 4 ) 2 ; White, pearly ; F. Diffi- 

 cult ; Acicular. 



Svanbergite, (SO 4 )(PO 4 ), Al, Ca.HO?; Yellow, brown, 

 rose-red ; Cl. basal ; H. 5 ; G. 3.30 ; F. Difficult ; III. 



Hamlinite, (Sr.OH)(A1.2 OH) 3 P 2 O 7 ; White to yellowish 

 white; Cl. basal. H. 4.5; G. 3.23 ; F. 4; III. 



