TABLE I. FOR DETERMINATION OF MINERALS. 



425 



Hardness. 

 Tin ore, 214. 60—70 II ; mas, fib ; G 5—71 ; bn, bk, yw, r; St paler; ad ; 



strp, op : Bl, on char, with soda, tin glob. Prim. 



b. Fumes before the blowpipe. 



Red antimony, 224. 10— 1-5 IV ; capil tufts and div ; G 4-4 — 4-6 ; cherry-r ; St 

 bnh-r ; ad, met ; strl ; nit w coating : Bl, fus ! I 

 or char, volat. Prim. 



Cobalt-bloom, 267. 1-5— 2-0 IV; foil fib, stel, earthy; 29—3; crimson and 

 peach-bloseom r, gyh, gnh ; St paler ; dry pow 

 der lavender b ; lam flex : Bl, fus ! on char allia- 

 ceous, bor fine blue glob. Prim, cobalt ores. 



Orpiment, 326. " III; foil lam flex; mas; G 3 4— 35; lemon yw; 



St paler ; p'ly, res ; strp, strl ; sectile : Bl, sul- 

 phur and arsenical fumes. (Realgar, p. 305, dif- 

 fers in its red color and orange streak.) 

 2 - VI ; fol I mas ; G 2-55 ; emerald gn, grass gn ; St 



paler ; p'ly, vit ; trp, trl ; sectile : Bl, alliaceous 

 fumes, rdh-bn scoria. 

 1-5 — 2-5 III ; mas ; G 2-07 ; yw ; rdh, gnh ; res ; trp, strl ; 



burns, b flame. 

 2-0—2-5 VI ; mas ; G 5-4—5-9, light r, to bk ; St r ; ad, met ; 

 strp, op : Bl, fus I ! sulph and arsen fumes ; silver 

 ores. 



Cinnabar, 287. " VI ; clcav ; mas* G 8—8-1 ; bright r, bnh-r, bn ; st 



r, bnh ; ad, sub-met ; strp, op ; nit, sol, r fumes : 

 Bl, wholly vol. Strat, prim. 



Atucamite, 302. 2-5—3-0 III; cleav ; mas; G 4 4 — 4-5; bright gn, olive-gn ; 



St gnh ; ad, vit ; strl : Bl, fus ! muriatic fumes ; 

 copper reaction ; copper ores. 



Copper mica, 



301. 



Sulphur, 



98. 



Red silver, 



327. 



II. LUSTER METALLIC. 



A. Streak unmetallic. 

 * No fumes before the blowpipe on charcoaL 



Wad, 260. 10 Mas, often earthy ; G 37 ; bD, bh ; soils ; aubmet : 



Bl, manganese reaction. 

 Earthy cobalt, 267. " Mas, earthy, bot ; G 2-2—2-3 ; bh-bk, bnh-bk ; St bh 



bk ; sectile : Bl, arsen fumes ; bor blue glass. 

 Pyrolusite, 259. 2-0—2-5 III ; col, rad ; mas ; G 4-8—5 ; iron-bk, St bk ; 



mur, odor of chlorine : Bl, infus ; bor amethyst, 



glob. 

 Cinnabar, 287. " VI; cleav ; mas : G 8—8-1 ; r, bnh-r, gyh, dark bn; 



St r ; strp, op ; nit sol, r fumes : Bl, volatile. 



Strat, prim. 

 Blende, 269. 3-5—40 I ; dodec cl I mas ; G 4—41 ; bn, bk ; St yw, bnh 



op ; submet, bright : Bl, fus. Prim, strat, etc. 

 Manganite, 26L 40— 4-5 DJ ; mas; G 4-3— 4-4 ; dark steel-gy, iron-bk; St 



rdh-bn. bkh : Bl, infus ; bor, amethystine glob. 



