_ 126 
Chemical Classification of Minerals. 
(Fes. 
generally couched in technical terms, that it is necessary to learn 
almost a language to comprehend them. 
COMBUSTIBLES,. 
Genus Oxygen. 
Sp. Ice. 
Ammonia. 
Muriate, 
Sulphate. 
Potassium. 
Nitrate. 
Sodium. 
Muriate, 
Sulphate, 
Glauberite, 
Carbonate, 
Borate, 
Criolite. 
Sulphur. 
Native, 
Sulphuric acid. 
Argilla. 
Corundum, 
Hydrargyllite, 
Subsulphate of 
Alum, 
Mellite, 
Topaz, 
§ 1. Pyrophysalite, 
§ 2. Pycnite, 
Spinelle, 
§ 1. Pleonaste, 
§ 2, Automolite, 
Cymophane, 
Blue [eldspar, 
Lazulite, 
Carlon. 
Diamond, 
Stone coal,* 
Bituminous coal, 
Jet, 
Bitumen, 
Dysodile, 
Retinasphaltum,t 
Wood coal, 
Peat, 
Amber, 
Plumbago. 
Boracic Acid. 
Native. 
Appendix. Improper Minerals, 
EARTHS. 
Common air, 
Carbureted hydrogen, 
Mineral tallow, ¢ 
Carbonic acid, 
Fibrolite, 
Cyanite, 
Andalusite, 
Sommite, 
Pseudo-sommite, 
Pinite, 
Granatite. 
Magnesia. 
Native, 
Hydrate, 
Sulphate, 
Carbonate, 
Borate, 
Serpentine. 
Chrysolite ? (See silex.) § 
%* Stone coal: this is in many cases the remains of bituminous coal] deprived of 
its bitumen. 
+ Retinasphaltum: the Highgate resin, or fossil copal, belongs to this species, 
(See Gentleman’s Magazine, vol. xxxii. p. 108. 
{ Mineral tallow is only the remains of some animal that has been buried ina 
peat bog. 
§ Chrysolite: some of the analyses give most silex, making the genus doubtful. 
