170 A POPULAR EXPOSITION OF THE 
A Tasuxar DisrriBpuTion oF CanapIAN MINERALS, INCLUDING, 
ALSO, A FEW OTHER MineraL SUBSTANCES OF 
COMMON OCCURRENCE. 
GENERAL INDEX. 
The reader is to determine, by this Index, the group and sub-group 
to which his unknown mineral belongs; and he is then to refer to the 
descriptions given under that sub-group in the pages immediately 
following the Index. 
§ Hard enough to scratch glass...... d 
’ UNot hard enough to scratch glass.. B. 
Hard enough to seratch glass...... C. 
Not hard enough to seratch glass .. D 
Aspect Metallic |. 
Aspect Non-metallic. . 
A. Aspect metallic. Hard enough to scratch glass : 
Colourdicht Brass-yellow 3.0.0... 2 eto oe oe Doe yee 
pOolowurwPalle icopperred gy eid aise ale rrateeuenntcyeaiele einen 
Colour, Tin-white, or Silver-white ............ ... Ad. 
Colour, Steel-grey, Black, or Brown ....----...... A4. 
B. Aspect metallic. Not hard enough to scratch glass : 
Malleable or: Ductile: 02.80.04 2). 6.230022 E ee ee 
Neeldine:to' the mail) CGE. OMe as ORG sisi 
Notiyielding to the mail 00). 2.0 M3 eee OE Seas 
C. Aspect non-metallic, (glassy, stony, &c.) Hard enough to scratch 
glass : 
Infusible. Very hard: not yielding to the knife...... One 
Infusible, or nearly so. Yielding to the knife ...... C 2. 
Fusible. Not yielding water in the bulb-tube........ (3. 
Fusible. Yielding water in the bulb-tube (jig. 22)... C4. 
D. Aspect non-metallic, (stony, glassy, &c.) Not hard enough to 
scratch glass : 
Soluble, and thus affecting the taste .............. Dili 
Taking fire when held (in thin splinters) in the flame 
OF ya camley iis. sbiush obs) che Maram, MN kcal ea Vat ae D 2. 
Not exhibiting the above reactions. Streak, coloured D 3. 
Streak, white. Not yielding water in the bulb-tube.. D 4. 
Streak, white. Yielding water in the bulb-tube (fig.22.) D5, 
