TABLE III. 



FOR DETERMINATION OF MINERALS. 437 







Hardness. Sp. 



gr. Clearafo. 



Mica, 



193 



2-8- 



-3-1 Foliated!! 



A.nglesite, 



281 



2-5—3-0 6-2- 



--6-3 Imperfect. 



Heavy spar, 



108 



2-5— 3-5 4-3- 



—4*8 Imperfect. 



Celestine, 



110 



" 3-°~ 



-4-0 Lat. distinct. 



Anhydrite, 



114 



3:0—3-5 2-8- 



—3-0 Three rect. dist 



White lead ore, 



281 



6-1- 



-6-5 Lat. perf. 



Witherite, 



109 



4-2- 



-4-4 Imperfect. 



Serpentine, 



145 



3.0—4-0 2-5- 



—2-6 Sometimes fol. 



Strontianite, 



111 



3-5—4-0 3-6- 



-3*8 Lat. distinct. 



Wavellite, 



130 



" 2-2- 



-2-4 Two distinct. 



Stilbite, 



165 



2-1- 



-2*2 One perfect! 



Harmotome, 



168 



4-0—4-5 2-4- 



—2*5 Imperfect. 



Wolfram, 



244 



5-0— 5-5 7-1- 



--7-4 One perfect. 



Lazulite, 



131 



5-0—60 3-0- 



-3*1 Indistinct. 



Yenite, 



245 



5-5—6-0 3-8- 



—4*1 Indistinct. 



Prehnite, 



170 



6-0—7-0 2-8- 



-3-0 Basal, distinct. 



lolite, 



190 



70—7-5 2-5- 



-2-7 Indistinct. 



§ Giving fumes before the blowpipe on charcoal. 



Orpiment, 



226 



1-5—2-0 3-4- 



-3-6 Foliated! 



Sulphur, 



98 



1-5—2-5 2-0- 



-2-1 Indistinct. 



White vitriol, 



271 



2-0—2-5 2-0- 



-2*1 One perfect. 



White antimony, 



224 



2-5—3-0 55- 



-5-6 Lat. perfect !! 



Atacamite, 



302 



3-0— 3-5 4-0- 



-4*4 Basal, perfect. 



Scorodite, 



249 



3-5—4-0 3-1- 



-3*3 Imperfect. 



Pyrolusite, 



Manganite, 



Wolfram, 



Yenite, 



Columbite, 



Tantalite, 



2. Luster metallic, 



* No fumes before the blowpipe on charcoal 



259 

 20 1 

 244 

 245 

 243 

 244 



2-0—2-5 

 4-0—4-5 

 5-0—5-5 

 5-5—6-0 

 5-0—6-0 



4-8—5-0 

 4-3—4-4 

 7-1—7-4 

 3-8—4-1 

 5-9—6-1 



Three imperfect 

 One imperfect. 

 One perfect. 

 Indistinct. 

 Indistinct. 



7-2—8-0 Imperfect. 



t Fumes before the blowpipe on charcoal. 



Gray antimony, 

 Brittle silver ore, 

 Vitreous copper, 

 Leucopyrite, 

 Mispickel, 



222 2-0 4-5—4-7 One perfect ! 



326 2-0 — 2-5 6-2 — 6-3 Imperfect. 

 292 2-5 — 3-0 5-5 — 5-8 Lat. indistinct 

 235 5-0—5-5 7-2—7-4 One distinct. 

 234 5-0—6-0 6-1—6-2 Lat imperfect 



White iron pyrites, 238 6-0 — 6-5 4-6 — 4-9 Lat imperfect. 



