DETERMINATION OF MINERALS. 397 



B. SULPHATES : No effervescence; reaction B.B. on coal with soda 



for sulphur. 



MASCAGNITE, p. 231. Yields ammonia. 



MIRABILITE, p. 226. Monoclinic, crystals stout ; taste cool, 



saline, bitter ; B. B. flame deep yellow. 

 EFSOMITE, p. 205. Trimetric, crystals ordinarily slender, spicule- 



like ; taste bitter and saline ; B.B. flame not yellow. 

 ALUNOGBN, p . 197. Taste like common alum. 

 KALINITE, MENDOZITE and other alums, p. 198. 

 MELANTERITE, p. 182. Green ; taste styptic ; reacts for iron. 

 CHALCANTHITE, p. 137. Blue ; reacts for copper. 

 MORENOSITE, p. 168. Green ; reacts for nickel. 

 BIEBERITE, p. 168. Reddish ; reacts for cobalt. 

 GOSLARITE, p. 156. White ; reacts for zinc. 

 JOHANNIT'E, p. 171. Emerald-green, reacts for uranium. 



C. NITRATES : With sulphuric acid, reddish acrid fumes ; no action 



with hydrochloric acid ; deflagrate. 



NITRE, p. 228. Not efflorescent. Strong deflagration. 

 SODA-NITRE, p. 229. Efflorescent. 

 NITROCALCITE, p. 214. Deflagration slight. 



D. CHLORIDES : With sulphuric acid acrid fumes of HC1 ; no fumes 



with HC1. 



S ALMIAK. p. 230. Taste saline, pungent ; on coal, evaporates ; with 



soda, odor of ammonia. 

 SYLVITE, p. 224. Taste saline ; B.B. flame purplish. 

 HALITE or COMMON SALT, p. 224. Taste saline ; B.B. flame 



yellow. 



E. BORATES. No effervescence with acids ; B.B. reaction for boron, 



when moistened with sulphuric acid. 



SASSOLITE, p. 97. Taste feebly acid ; B.B. very fusible. 

 BORAX, p. 227. Taste sweetish alkaline ; B.B. puffs up. 



2. MINERALS NOT HAYING AN ACID, ALKA- 

 LINE, ALUM-LIKE OR STYPTIC TASTE. 



A. CARBONATES : Effervescing with HC1. 



A. INFUSIBLE ; ASSAY ALKALINE AFTER IGNITION. 



CALCITE, p. 215. H. under 3*5 ; G. =2-5-2-72; 11AR=105° 5', 

 with three easy cleavages parallel to B; colors various ; effervesces 

 readily with cold HC1 ; anhydrous. 



