376 Tabular View of an Arrangement of Minerals. 



Genera. 1. Titanium-Ore. 2. Zinc-Ore or Red Oxide of Zinc. 

 3. Red Copper Ore or Red Oxide of Copper. 4. Tin-Ore or 

 Oxide of Tin. 5. Tantalum-Ore. 6. Wolfram- Ore. 7. 

 Uranium-Ore. 8. Cerium-Ore. 9. Chrome-Ore. 10. Iron- 

 Ore. 11. Melane-Ore. 12. Manganese-Ore. 



Order II. METALS, or NATIVE METALS. 



Metallic. Not lead-grey, not black. Fluid, solid. Hard- 

 ness = 0-0— 7-0. Sp. gr.'= 5-7— 21-0. 



Genera. 1. Arsenic. 2. Tellurium. 3. Antimony. 4. Bismutl). 



5. Mercury. 6. Silver. 7. Gold. 8. Iridium. 9. Palla- 

 dium. 10. Platina. 11. Iron. 12. Copper. 



Order III. PYRITES, or HARD SULPHURETS. 



Metallic. Not lead-grey, not black. Streak black. Hard- 

 ness = 30— 6-5. Sp. gr. = 4-2— 7-7. 



Genera. 1. Nickel-Pyrites, or Copper-Nickel, or Arsenical 

 Nickel. 2. Arsenical-Pyrite. 3. Cobalt-Pyrites. Iron-Pyrites. 

 Copper-Pyrites. 



Order IV. GLANCE, or SEMIHARD SULPHURETS. 



Metallic. Colour grey, black, brown. Hardness =10 — 

 4-0. Sp. gr. = 4-2— 8-8. 



Genera. 1. Dystom-Glance. 2. Copper-Glance. 3. Silver- 

 Glance. 4. Lead-Glance. 5. Eutomous Glance. 6. Bismuth- 

 Glance. 6. Antimony-Glance. 8. Melane-Glance. 



Order V. BLENDE, or SULPHURETS WITHOUT 

 METALLIC LUSTRE. 



Metallic, black ; not metallic. Streak green, red, orange, 

 brown, white. Hardness = 1-0— 5-0. Sp. gr. = 2-8— 8-2. 



Genera. 1. Manganese-Blende. 2. Bismuth-Blende. 3. Cad- 

 mium-Blenda (Greenockite, Jam.) 4. Zinc-Blende or 

 Garnet-Blende. 5. Antimony-Blende, or Purple-Blende. 



6. Ruby-Blende. 



Order VI. THIOLITE. 



Not metallic. Colour, red, yellow, brown. Streak red, 

 yellow, white. Hardness = 1"5 — 2-5. Sp. gr. 1-0 = 3-6. 



