IRON MINI RAL8 857 



2. With Turner's flux it yields a boric acid flume (bright 



gr 



Liineburgite, Mg3(P0 4 ) 2 .BiOs.8 HjO ; White; C. 2 

 Fibrous, earthy. 



3. Yields a strong sodium flame (yellow). 



Beryllonite, NaBePO 4 ; White; Cl. basal; H. 5.5-6; 

 G. 2.84 ; F. 3-3.5 ; IV. 



4. Yields a lithium flame (red). 



AMBLYGONITE, Li(Al.F)PO 4 ; White, pale green. 



blue; Cl. basal; H. 6 ; G. 3.08; F. 2 ; VI; p. 512, 

 Montebrasite, Li[Al(OH.F)]PO 4 ; White, blue, pale 



green; Cl. basal ; H. 6; G. 3.00; VI. 



5. The HC1 solution yields a precipitate of magnesium 



ammonium phosphate with ammonia. 

 Wagnerite, Mg(MgF)PO 4 ; Pale yellow, gray, red; H. 



5.5; G. 3.06; F. 3.5-4; V. 

 Bobierrite, Mg 3 (PO 4 ) 2 .8 H 2 ; White; pinacoidal ; H. 



2.5 ; G. 2.43 ; V. 



6. Phosphates of the rare earths; a, p. 575. 



MONAZITE, (Ce.La.Di)PO 4 ; Yellowish to reddish 

 brown; H. 5-5.5; G. 5.10; V; p. 507. 



XENOTIME, YP0 4 ; Yellow to reddish brown; Cl. 

 prismatic; H. 4-5; G. 4.53 ; Inf.; II. 



Rhabdophanite, (La.Di.Y.Er)P0 4 .H 2 O ; Brown, pink, 

 yellow, white; H. 3.5 ; G.3.95; F. Difficult; Massive. 



Churchite, *Ca 3 Ceio(PO 4 )i2.24 H 2 0?; Smoky-gray, pink- 

 ish ; H. 3-3.5; G. 3.15. 



VII. The powdered mineral heated in R. F. on coal becomes 

 magnetic. 



A. Effervesces in warm dilute HCl (carbonates). 



SEDERITE, FeCO 3 ; Light to dark brown; Cl. rhom- 

 bohedral; H. 3.5-4; G. 3.85; Inf.; Ill; p. 388. 



Ankerite, Ca(Mg.Fe.Mn)(CO 3 ) 2 ; Gray, brown; Cl. 

 rhombohedral ; H. 3.5-4 ; G. 3.03 ; Inf. ; III. 



Breunnerite (Mg.Fe)CO 3 , Brown, gray; Cl. rhom- 

 bohedral ; H. 3.5-4.5 ; G. 3 ; Inf. ; III. 



B. The finely powdered mineral is soluble in boiling concentrated HCl. 



leaving no residue of silica. 

 I. Yields little or no water. 



Hematite, Fe 2 3 ; Red to reddish black; H. 5.5-6; 



G. 5.10; Inf.; Ill; p. 343. 

 2u 



