riKM-ii m-:s 653 





Uranospinite, CatUC^MAsCMa.S H,O ; Bright gi 

 Cl. basal; H. 2-3; G. 3.45; IV, 



/'. l-'uxfd irith potassium hixul/,li<iti in the dosed tnl>< . it 

 fluorine. 



1. It yields a sodium flame (yellow). 



Durangite, Na(AlF)AsO 4 ; Light to dark orange-mi; 

 C. prismatic ; H. 5 ; G. 4.0 ; F. 2 ; V. 



2. Shows calcium ; 6, p. 566. 



Tilasite, Ca(MgF) AsO 4 ; Gray to violet; Cl. pina- 



coidal; F. 4.5-5; Foliated. 

 Svabite, Ca 4 (CaF)(AsO 4 ) 3 ; Colorless; Cl. pri>mati< : 



G. 3.5 ; F. 4.5-5 ; III. 

 G. The concentrated HCl solution yields a precipitate with a ilfop 



of sulphuric acid (calcium). 



Adelite, Ca(Mg.OH)AsO 4 ; Gray; H. 5 ; G. 3.7i\ : V 

 Haidingerite, HCaAs0 4 .H 2 O ; White; Pearly: ( 1. 



pinacoidal ; H. 1.5-2.5; G. 2.85; F. 2.5; IV. 

 Pharmacolite, HCaAsO 4 .2 H 2 O ; White or gray ; Pearly ; 



Cl. pinacoidal ; H. 2.5 ; G. 2.47 ; F. 2-3 ; V. 

 H. Becomes violet with cobalt solution. 



Hoernesite, Mg 3 (As0 4 )2.8 H 2 O ; Snow-white ; Pearly : 



Cl. pinacoidal ; H.I; G. 2.47 ; F. 2-3 ; V. 

 VI. The nitric acid solution shows phosphoric acid with ammonium 



molybdate, b, p. 590. 



.4. The powdered mineral treated with the R. F. on coal yields a 

 magnetic residue. 



1. Yields a lithium flame. 



TRIPHYLITE, Li(Fe.Mn)PO 4 ; Light blue, green, gray : 

 resinous; Cl. basal ; H. 4.5; G. 3.55; F. 2.5; IV. 



2. The borax bead shows manganese. 



a. Yields a strong yellow flame (sodium). 

 Natrophilite, Na(Mn.Fe)PO 4 ; Deep wine-yellow; 



Resinous; Cl. basal ; H. 4.5-5 ; G. 3.41 ; F. 2-2.5; 



IV. 

 Dickinsonite, (Mn.Fe.Ca.Na^PCMj.i H 2 O ; Olive-oil 



or grass-green; Cl. basal; H. 3.5-4; G. 3.34 ; F. 



2.5; V. 

 Fillowite, (Mn.Fe.Ca.NasMPCMa.i H 2 O ; Wax yellow to 



brown; Greasy; Cl. basal; H. 4.5; G. 3.43; F. 



2.5-3; V. 



b. It will not yield a yellow flame. 



