THE NATURAL ARRANGEMENT, XXXV 



16. H e rn i-p r i s rn a t i c (M.) Heulandite. 



17. Diplogenous (M.) Epistilbite. 



18. Poly prismatic 45 (S.) Brewsterite. 



19. Pyramidal (M.) Apophyllite. 



Gen. VI. AZURE-SPAR. (M.) Color blue. H. 5-0 . . . 



6-0. G. 2-83... 3-10. 

 Sp. 1. Prismatic (M.) Lazvlite. 



2. Prismatoidal (M.) Blue Feldspar. 



3. Uncleavable(S.) Turquoise. 



Gen. VII. FELD-SPAR. (M.) H. 5-0... 6-0. G. 2-5 

 ...3-1. 



Sp. 1. Rhombohedral (M.) Nepheline. 



2. Orthotomous (M.) Feldspar. 



3. Heterotomous 4 6 (M.) Periklin. 



4. T e t a r t o-p r i s m a t i c ( M.) Mbite. 



5. Anorthotomous (M.) Anorihite. 



6. Polychromatic 47 (M.) Labradorite. 



7. Eru throne 48 (S.) Latrobite. 



Gen. VIII. ANDALUSITE-SPAR. (M.) 

 Sp. 1 . Prismatic (M.) Jlndalusite. 



45 IIoXu?, many* in allusion to the numerous prisms its 

 crystals present in a single form. 



46 'E<rs(xr, another, and TS'JXVW, I cleave, in allusion to its 

 having a different cleavage from Feldspar. 



47 IloXtV, many, and x^ a > c l r i ^ n allusion to the play 

 of colors it presents. 



4 8 Efudo, red. 



