MAN<;AM:SI: MIM:I;.\I.S <KJ;> 



Cappelenite, BaY 6 BaSi3O2 5 ; (Jrcniisli l>rc>\vn ; II. ii ',.:, ; 



C. 1.11 ; F. 4-5; III. 

 a. Yields u titanium reaction $ />, p. 570. 



Warwickite, (Mg.Fc) 4 TiB 2 O 9 ; Hair-brown ; Dull ; Cl. 



pinan.idal; H. 3-4; G. 3.30; Inf.; IV. 

 6. Becomes blue with cobalt solution. 



Jeremejevite, A1BO 3 ; White to pale yellow; H. 6.5; 



G. 3.28; Inf.; III. 

 3. Contains the rare earths; a, p. 572. 



Melanocerite, Si, Ta, B, Ce, La, Di, Y, Ca, Na, H, F,?; 



Deep brown to black ; Inf. ; Greasy ; H. 5-6 ; G. 



4.13; III. 

 Caryocerite, Si, Ta, B, Th, Ce, La, Di, Y, Ca, Na, H, 



F; Nut-brown; Greasy; H. 5-6; G. 4.29; Inf.; 



III. 

 X. The finely powdered mineral dissolved in borax on wire in con- 



siderable quantities in the O.F. is violet-red when 



cold (manganese). 

 A . The borax bead is powdered, dissolved in 1 cc. of dilute HCl and 



the solution is reduced with tin when it becomes blue; 



b, p. 587. 

 HUBNERITE, MnWO 4 ; Brown to brownish black ; 



Resinous ; Cl. pinacoidal ; H. 5-5.5 ; G. 7.2 ; F. 



4 ; V ; p. 542. 

 Mangano-columbite, MnCb 2 O 6 ; Reddish to dark brown ; 



Hesinous ; Cl. pinacoidal ; H. 5 ; G. 6.6 ; Inf ; IV. 



B. The solution is green (vanadium). 



Ardennite, HsM^AUVSiAss? ; Yellow to yellowish 

 brown; Resinous; Cl. pinacoidal ; H. 6-7 ; G. 3.65; 

 F. 2-2 ; IV. 



C. The solution is colorless or nearly so. 

 1. Fusibility below 5. 



a. Gelatinizes with HCl. 

 . Yields no water. 

 TEPHROITE, Mn 2 SiO 4 ; Smoky-gray to brownish red; 



Cl. pinacoidal ; H. 5.5-6; G. 4.04; F. 3.5; IV. 

 Glaucochroite, CaMnSiO 4 ; Blue, green; H. 6; G, 



3.40; F. 3.5; IV. 

 The HNO 3 solution yield a precipitate with silver nitrate 



(chlorine). 

 Eudialyte, Si, Al, Ca, Na, K, O,. Cl, (SO 4 )(CO 3 )?| 



