144 PETRIFACTIONS AND THEIR TEACHINGS. CHAP. III. 



MINERALS. 



TABLE-CASE 1. [47.] Carbonates of lime and magnesia. 

 Rhomb-spar ; dolomite ; brown spar ; flexible dolomite, from 

 Pittsfield, Massachusetts, North America. 



2. [14.] In this and Cases 15 and 16, are deposited 

 most of the oxides of iron. Magnetic iron ore ; crystallized 

 varieties ; natural magnets ; magnetic ironsand. 



3. [46.] Calcite ; pisiform limestone, or pea-stone, from the 

 hot springs of Carlsbad, in Bohemia. Tufaceous limestone. 

 Human skull incrusted, from the Tiber, at Rome. Tufaceous 

 casts, from the Baths of San Filippo, near Tivoli. 1 



4. [15.] Iron-glance, or specular oxide, from Elba, Strom- 

 boli, Vesuvius : red ironstone, and red hematite. 



5. [45 A and .] Marbles of various kinds. In [45 A.~\ 

 specimens of the Corinthian lumachella, or fire-marble : the 

 beautiful play of colours is produced by the fossil laminated 

 shells imbedded. 



6. [16.] Hydrous oxide of iron, or brown ironstone. Speci- 

 mens of argillaceous, or clay ironstone, as the reniform, 

 columnar, and pisiform, or pea-ore. 



7. [45.] Prismatic modifications of crystallized calcite, with 

 stalactites and fibrous varieties, from Sweden, Cumberland, &c. 



8. [17.] Oxides of copper ; red, or ruby copper ; black 

 oxide ; oxide of bismuth ; red oxide of zinc ; red and yellow 

 earthy cobalt. Oxide of uranium. 



9. [43,44.] Crystallized varieties of calcite or calc spar; 

 specimens illustrative of double refraction, cleavage, super- 

 numerary joints, colour, &c. ; secondary, obtuse, and acute 

 rhombohedrons. Crystallized sandstone of Fontainbleau. 



10. [18.] Oxide of lead ; native minium. Oxide of tin or 

 tinstone. Metallic tin ; some thick tin wires, brought from 

 Soudan, in Africa, by Captain Clapperton. 



11. [11.] Various forms of aragonite. A variety of car- 

 bonates of lime, containing a small percentage of carbonate of 

 strontia ; coralloidal aragonite varieties of carbonate of lime, 

 or calcite. 



12. [19.] Alumina and Aluminates. Corundum ; Emery ; 

 Indianite. Aluminates of magnesia ; the spinel ; chryso- 

 beryls, in large crystals, from Brazils and the Urals ; and in a 



1 See ' Wonders of Geology," vol. i. p. 75. 



