CLASS II. 



HALOIDE. BARYTE. KERATE. MALACHITE. MICA. 



SPAR. GEM. ORE. METAL. PYRITES. 



GLANCE. BLENDE. SULPHUR. 



ORDEE I. HALOIDE. 



GKNUS I. GYPSUM-HALOIDE. 



1. PRISM ATOIDAL GYPSUM-HALOIDE. 



Axifrangible Gypsum. JAM. Syst. Vol. II. p. 615. Pris- 

 matoidal Gypsum. Man. p. 20. Gypsum. Sulphate of 

 Lime. PHJLL. p. 174. Gips. Fraueneis. WEHX. 

 Hoffm. H. B. III. 1. S. 105. 116. Gyps. Stink- 

 gyps. HAUSM. III. S. 887. 893. Wasserhaltiger 

 schwefelsaurer Kalk. LEONH. S. 549. Chaux sulfa- 

 te'e. HAIJY. Traite', T. II. p. 266. Tabl. comp. p. 9. 

 Traite', 2de Ed. T. I. p. 527.. 



WEISS. Schriften der Acad. der Wiss. zu Berlin fur 

 1820, u. 21. SORET. Ann. des Min. II. 435. III. 487- 



Fundamental form. Scalene four-sided pyramid. 

 P = | ^ ^ | , 123 36', 70 23 r . Inclination 



= 9 II 7 in the plane of the short diagonal. 

 + Pr runk.) __ f53 8'1 y , j- Fi 41 

 - -3- 1 T J - (66 52'r 



HAUY. 



a : b : c : d : = 6-2 : 10'8 : 15-4 : 1. 



P 1n\ f 143 52') p , 

 Simple forms, \ ^ : = \ 138 o 54/ f , i? 



