iTsnui.rn BELOW, II.\I;DM.SS \uu\i-: 5 673 



Brewsterite, H,(Sr.Ha.< ::ll<>. While. 



yellow, red; CI. pinar.i.l:il; II. .j; G. 2.45 ; P.3j \ : 



Shows Karimn. 

 Phillipsite, (C:i.K,.Na,)AI,Si ,(),,. I 11,0; White; Cl. 



pinaroidal; H. 5; G. 2.20; F. 3; V. 

 Faujasite, H 2 (Ca.Na)Al 2 (SiO,) 6 .9 H 2 ; White, brown; 



Cl. octahedral; II. .'>; G. 1.92; F. 3; I. 



ft. Fuses quietly. 



PECTOLITE, HNaCa2(SiO s ) 3 ; White, gray; Cl. piua- 



coidal; H. 5; G. 2.73; F. 2.5-3; V; p. 427. 

 ANALCITE, NaAl(Si() 3 ) 2 .H 2 O; White; H. 5-5.5; 



G. 2.27 ; F. 3.51 ; p. 485. 

 Catapleiite, H4(Na2.Ca)ZrSi 3 On ; Yellow, brown, gray, 



violet ; Cl. prismatic ; H. 6 ; G. 6.28 ; F. 2.5. ; III ; 



Shows Zr. ; a, p. 571. 

 6. Gelatinizes with HC1. 

 a. Effervesces with HC1. 

 CANCRINITE, Hf(Na t .Ca) 4 (Al.NaCOi)fAl l (SiO4) ; 



Yellow, pink, gray, white ; Cl. prismatic; H. 5-6; 



G. 2.45; F. 2.5; III; p. 441. 

 Cenosite, Si, Y, Ca, O, C0 3 .H 2 O, ?; Yellowish brown; 



Greasy ; Cl. pinacoidal ; H. 5-5.5 ; G. 3.41 ; IV. 

 ft. The HC1 solution yields a precipitate showing the 



presence of aluminium, but not calcium, 6, p. 568. 

 NATROLITE, Na^AUAlO) (SiO 3 ) 3 .2 H 2 O ; White ; ' Cl. 



prismatic; H. 5-5.5; G. 2.25 ; F. 2.5; IV; p. 486. 

 Hydronephelite, HNasAl(SiO 4 ) 3 .3 H 2 O; White to dark 



gray; H. 5-6; G. 2.30; F. 2.5; III. 

 y. Shows both aluminium and calcium. 

 SCOLECITE, CaAl(A1.2HO)(SiO 3 ) 3 .2H 2 O; White; 



Cl. prismatic; H. 5-5.5; G. 2.30; F. 2.5; V; p. 



479. 

 MESOLITE, Na^CasAleSisOao, 8 H 2 O ; White, gray, 



yellow; Cl. prismatic; H. 5; G. 2.29; F. 2.5; 



V; p. 478. 

 THOMSONITE, (Ca.Naa)Alj(SiO 4 ).2J H 2 O; White, 



gray ; Cl. pinacoidal ; H. 5-5.5 ; G. 2.35 ; F. 2.5 ; 



IV; p. 487. 



8. Shows calcium but no aluminium ; 6, p. 566. 

 Okenite, H 2 Ca(SiO 3 ) 2 .H 2 O ; White, cream, bluish 



white ; Dull ; H. 4.5-5 ; F. 3 ; Fibrous, compact. 

 2x 



