52 MINERALS AND GEOLOGV 



( Sp gr. over 9, reddish tin white Native Bismuth, (No. 8.) 



I Sp. gr. under 7, light lead-grey, often iridescent Bismuth 



Glance (No. 24.) 



, . j Breaking into rectangular fragments GALENA (Mo. J2.) 



' 8 I BB, yielding antiinonial fumes. . . .Menighinite aud Plumbigerous 



Antimony Ore, (Nos. 25 and 25 />;*.) 



Lustre distinctly metallic ; streak greyish-black ; mostly fibrous or 

 acicular ...Maniranite (No. 35.) 



Lustre sub-metallic ; streak, mostly pale brown ; BB, sulphur-reaction, 

 p. 44 .ZINC HLi-;.N DE (No. 13.) 



r Soluble or partially soluble in water. Taste bitter or metallic. Occur- 

 ring chiefly as an efflorescence or incrustation 36 



35 -j ( Occurring in earthly masses or crusts (which soil or mark 



| Insoluble ] more or less) 39 



( Occurring under other conditions 48 



BB, with borax, a coloured glass or bead 37 



BB, with borax, a white or colourless beard 38 



( Solution giving a deep blue precipitate with red or yellow "prussiate of 



37 ] potash."* Green Vitriol (Sulphate of Iron) (No. 100.) 



( Solution giving a greenish-white precipitate with " yellow prussiate." 



Sulphate of Nickel (No. 101.) 



( BB, with nitrate of cobalt, a blue mass after ignition (see p. 34.) 



38 ) Alum (No. li 



( BB, with nitrate of cobalt, a pale-red mass Epsomite (No. 99.) 



OQ j Colour, yellow or yellowish-brown 40 



| Colour, red, black, brownish -black, blue, or green 43 



BB, taking fire and burning with blue flame Sulphur (No. 2.) 



BB, not inflammable . . 41 



BB, becoming black and magnetic 42 



BB, not rendered magnetic Uran Oehre (No. 37 .) 



.^ ( Occurring in thin crusts on bituminous shale Humboldtine (No. 108.) 



" | Occurring under other conditions YELLOW OCHRE (No. 34.) 



( Colour, red. BB, becoming magnetic .. RED OCHRE and SCALY RED 

 43] IRON ORE (No. 29.) 

 ( C. black, dark -brown, blue, or green 44 



44 \ Q' black or dark-brown 45 



j C. blue or green , 46 



!BB, inflammable Asphalt (No. 110.) 

 BB, not inflammable. Forming with carb-soda a ''turquoise enamel," 

 p. 39 EARTHY MANGANESE ORE (No. 36. ) 



47 



(Green Carbonate 

 of Copper) (No. 95. ) 



,~ j Colour, blue 47 



Colour, green. Effervescing in acids Malachite (Green Carbonate 



* As the iron is always partly peroxidized, a blue precipitate is produced by either of these 

 reagents. 





