634 



APPENDIX. 



No. XI. Examples of the application of the present 

 system to Lithology and Metallogy. 



LITHOLOGY. 



DOM. I. SIDEROUS. 



II. SILICEOUS. 



III. ARGILLACEOUS. 



IV. TALCOUS. 



V. CALCAREOUS. 

 VI. BARYTIC. 

 VII. STRONTIANIC. 

 VIII. ZIRCONIC. 

 IX. SALINE. 

 X. COMBUSTIBLE. 



DOMAIN VII. 



STRONTIANIC. 



MODE I. Strontian, or Car- 

 bonate of Strontian. 



STRUCTURE I. Massive. 

 Aspect 1. Entire. 



2. With barytes, gale- 

 na, &c. 



STRUCTURE II. Crystallised. 

 Varieties, green, white*. 



MODE II. Celestine, or Sul- 

 phate of Strontian. 

 STRUCTURE I. Fibrous. 

 Aspect i. Massive. 

 2. Laminar. 



Varieties, of different colours. 

 STRUCTURE II. Foliated. 



III. Radiated. 



IV. Compact. 



* Any very singular colour would 

 form a Diversity. 



Of this last is that of Mont- 

 martre, which however only oc- 

 curs in goods or nodules, and 

 greatly yields in beauty to the 

 other Structures. 



DOMAIN VIII. 



ZIRCONIC. 



This may be divided into 

 two Modes, as there seems 

 to be more silex in the ja- 

 cint than in the zircon j and 

 at any rate the mode of 

 combination is different, else 

 they could not be distin- 

 guished. 



MODE I. Zircon. 



STRUCTURE I. Globular. 



II. In various crys- 

 talline forms, which must be de- 

 scribed. 



MODE II. Jacint, by the Per- 

 sians called Yacut. 



STRUCTURE I. In round grains. 



II. In various crys- 

 talline forms, which form aspects, 

 while the colours fonn varieties. 



METALLOGY. 



DOM. I. GOLD. 



II. PLATINA. 



III. SILVER. 



IV. COPPER. 



