TABLE III. FOR DETERMINATION OP MINERALS. 



435 



A.jm, 



Common salt, 

 Red copper ore, 

 Fluor spar, 

 Pyrochlore, 

 Analcime, 

 Lapis Lazuli, 

 Socialite, 

 Garnet, 

 Boracite, 



127 

 104 

 296 

 121 

 208 

 168 

 196 

 197 

 184 

 126 



t Fusible. 

 Hardness. 



1-5—2-0 



2-0 



3-5—4-0 



4*0 



5-0—5-5 



a 

 5.5_6-0 



5-5—6-0 

 6-5—7-5 

 7-0 



Sp. gr. 



1-7—1-8 

 2-2—2-3 

 5-8—6-1 

 3-0—3-3 

 3.8—4-5 

 2-0—2-3 

 2-5—2-9 

 2-2—2-4 

 3.5—4.3 



2-9—3-0 



Cleavage.. 



Oct. 

 Cubic. 

 Oct. imperf. 

 Oct. perf. 

 None. 

 Imperfect. 

 Dodec. imperf. 

 Podec. imp. 

 Dod. oft. distinct 

 Oct. indistinct. 



2. — Luster metallic, 



* No fumes before the blowpipe on charcoal 



Native copper, 

 Native silver, 

 Native gold, 

 Blende, 



Native platinum, 

 Native iron, 

 Chromic iron, 

 Franklinite, 

 Magnetite, 



290 

 323 

 312 

 269 

 308 

 230 

 241 

 240 

 235 



2-5—3-0 



3-5- 



4-0- 



4-5 



5-0- 



5-5- 



-4-0 

 -4-5 



-5-5 

 -6-5 



8-4— 8-8 



10-3—10-5 



12-0—20-0 



4-0— 4-2 



16-0—19-0 



5-1— 5-2 



4-3— 4-5 



4-8— 5-1 



5-0— 5-1 



None. 

 None. 

 None. 

 Dodec 

 Cubic, 

 Oct. perfect, 

 Oct. imp. 

 Oct. imp. 

 Oct. imp. 



perf ! 

 indist. 



t Fumes before the blowpipe on charcoal. 



Vitreous silver, 325 2-0—2-5 7-1—7-4 Dodec. imperf, 



Native bismuth, 220 " 9-7—9-8 Oct. perf! 



Native amalgam, 287 2-0 — 3'5 10-5 — 14 Dodec. imp. 



Erubescite, 294 2-5—3-0 5-0—5-1 Oct. imp. 



Galena, 277 " 7-5—7-7 Cubic perf! 



Gray copper ore, 295 3-0 — 4*0 4*7 — 5-2 Indistinct. 



Nickel glance, 253 5-0—5-5 6-0—6-2 Cubic perf! 



Cobaltine, 266 " 6-1—6-3 Cubic perf. 



Smaltine, 266 " 6-3—6-4 Oct. imp. 



White nickel, 263 5-5 7-1—7-2 



Pyrites, 231 6-0—6-5 4-8—5-1 Cubic i-np. 



n.— CRYSTALS DIMETRIC. 

 1. Luster unmetallic. 



* Infusible. 



211 5-5—6-0 3-8— 3-9 Oct. and basal 

 35 



&natase, 



