112 ONTOLOGY. 



B. Class-Talcs. 



5. Salt-talcs . . . Hornblende. 



6. Inflammable-talcs . Asbestus. 



7. Ore-talcs . . . Olivine. 



V. Elemental-Talcs. 

 Fam. 8. Water-talcs . Terpentin, Steatite. 



9. Air-talcs . . Lithomarge, Fuller' s-earth, Bole. 

 10. Fire-talcs . . Basalt. 



Here also the first 7 families only are crystallized and occur 

 for the most part in a scattered manner ; but the aqueous, 

 aerial, and igneous families, as well as the first family in 

 part, are merely compact and mountainous masses. 



540. The fourth order or that of the Calcareous earths 

 is developed likewise according to the same laws. As, 

 however, it approximates the salts, and therefore com- 

 bines with acids, it presents many anomalous varieties, of 

 which account cannot be taken in every instance. These 

 minerals are soft throughout, change by fire and admit of 

 being wholly or partially dissolved in acids. Here belong 

 the zeolites, or combinations of the calcareous earths with 

 the other earths. 



A. Calcareous earths, Zeolites. 



1. Silicio-calcareous earths Lapis lasuli, Scapolite. 



2. Argillaceo- Mesotype, Analcime, Stilbite. 



3. Talco- Stellite. 



4. Calcareo- Tabular spar. 



B. Classes of Calcareous earths. 



5. Halo-calcareous earths Boracite. 



6. Inflammable- Phosphate of lime, Fluorspar ? 



7. Ore- Titanite, Tungsten. 



C. Elemental-Calces. 



8. Water calcareous earth Hydrophyllite ? Wavellite. 



9. Air- Gypsum, Heavy-spar, Celestine. 

 10. Fire- Limestone. 



Here also the first 7 tribes only occur crystallized, the 

 3 last, in a great measure, compact, and as mountainous 

 masses. 



