

OF CENTRAL CANADA PART II. 53 



( Effervescing in acids ; BB, reactions of Copper (p. 37. ). . Blue Carbonate 



of Copper (No. 95. ) 

 3B, rendered magnetic Vivianite (Phosphate of Iron) (No. 104.) 



48 ! -^ arc ^ uess sufficient to scratch window-glass distinctly 49 



I Hardness insufficient to scratch glass distinctly 69 



49 \ Fusible or partially fusible, per se* 50 



I Infusible, per se 61 



*n i Sp. gr. = 3.0 or less. (Colour, mostly pale..). . 51 



)U j Sp. gr. o ver 3. \ . . . 5 6 



51 j Yielding water by ignition in bulb-tube (see p. 34) 52 



i Not yielding water, or yielding traces only, on ignition 53 



( Fusible on thin edges, only. C. dark-green Chloritoid (No. 81.) 



52 j Easily fusible. C. light-green, greenish- white PREHNITE (No. 67.) 



( Easily fusible. C. peach-blossom red Wilsonite : var. of Scapolite 



(No. 63.) 



53 j Easily fusible SCAPOLITE OR WERNERITE (No. 63. ) 



| Fusible on edges only, unless in thin splinters 54 



( White, red, &c. In masses with smooth rectangular cleavage. . . 



54 j ORTHOCLASE (No. 57. ) 



Cleavage not rectangular. Cleavage planes faintly striated 55 



( White, reddish, &c. BB, imparting a yellow colour to the flame 



ALBITE (No. 58.) 

 ( Grey, often with coloured reflections LABRADORITE (No. 60.) 



In rhombic dodecahedrons or trapezohedrous (p. 14), or in imbedded 



granular masses mostly of a red colour GARNET (No. 47.) 



In fibrous masses or prismatic crystals 57 



I In black, brown, or green triangular prisms (often broken and disjointed 



57 < or in fibres with triangular cross fracture TOURMALINE (No. 46. ) 



( In other forms g'g 



_ j In tetragonal (square prismatic) crystals (p. 15). Sp. gr. 3.5 or more. . 



Idocrase (No. 48.) 

 ( In other forms 59 



i Fusible into a globule or rounded mass AMPHIBOLE (No 52 ) 



PYROXENE (No. 53. ) 

 -b usible on th-e surface, only, into a dull slag or scoria 60 



( In flat wedge-like crystals, mostly dark-brown or yellowish 



SPHENE(No.51.) 



in green nbrous masses and long prismatic crystals EPIDOTE (No. 49. ) 



61 j Streak-powder, white, or greyish in dark specimens .62 



( Streak-powder, black, brown, greenish or red ' 66 



* In testing this character, only a thin, pointed 



56 



