99 
Tests. 
The following are a few rough tests which may be employed in the bush:— 
First note the appearance, whether metallic or not; the colour, the specific 
gravity (roughly whether heavy or light); the hardness may be tested with a pocket 
knife and pieces of quartz, glass, and copper coin; the appearance of some of the 
mineral finely powdered, whether malleable or magnetic, if possible the effect 
of nitric acid and the effect of fire. For these tests all that will be required are a 
hammer, a knife (which should be magnetised by rubbing it on a magnet) ; a 
magnifying glass, and some nitric acid, the latter if possible. 
Minerals with Metallic Lustre. 
Colour. 
Specific 
Gravity. 
Hardness. 
Colour 
of Powder. 
Colour 
when burnt. 
Magnetic 
or not. 
Name. 
Golden 
19*3 
2*5 
(Malleable) 
Golden 
No 
Gold 
M 
8*9 
3*0 
it 
Blackens 
a 
Copper 
M 
4*3 
3*5 
Green Black 
a 
it 
Copper Pyrites 
W 
4*9 
6*5 
Brown Black 
Red Brown 
tt 
Iron Pyrites 
Silver 
21*0 
4*5 
(Malleable) 
Silver 
tt 
Platinum 
» 
10*5 
2*5 
a 
Blackens 
it 
Silver 
tt 
11*4 
1*5 
a 
Melts 
it 
Lead 
it 
7*5 
4*5 
Red 
Red 
it 
Specular Iron 
M 
4*5 
2*0 
Grey 
Volatile 
a 
Antimony Ore 
tt 
7*5 
2*5 
a 
Fuses 
a 
Galena 
Minerals 
without Metallic Lustre. 
Black 
4*82 
2 to 5 
Black 
— 
it 
Manganese 
White 
6*4 
3*5 
White 
Fuses 
it 
Carbonate of 
Red 
Lead 
9*0 
2*5 
Red 
Volatile 
a 
Cinnabar 
Green 
Blue 
3*8 
3*7 
3*5 
Pale Green 
Blackens 
it 
Carbonate of 
Copper 
4*0 
Bluish 
Brown 
4*5 
6*5 
Red 
Unaltered 
Hematite 
White, Yel-j 
low, Green, [» 
Brown, Black \ 
Brown Black 
4*0 
3*5 
Brown 
— 
it 
Sulphide of Zinc 
7'0 
6 to 7 
Grey 
Unaltered 
tt 
Tin Ore 
Weights and Measures. 
MEASURE OF LENGTH. 
Inch. 
7*92 
_ 
Link. 
1 
Foot. 
Rod, pole, 
Yard. or perch. 
Chain. Furlong. Mile. 
12 
= 
1*515 
— 
1 
36 
!-r» 15 
=r 
3 = 
1 
198 
= 
25 
— 
16$ = 
5$ = 1 
792 
= 
100 
= 
66 = 
22 = 4 = 
1 
7,920 
= 
1,000 
— 
660 = 
220 = 40 = 
10 = 1 
63,360 
= 
8,000 
= 
5,280 = 
1,760 = 320 = 
80 = 8 = 1 
SPECIAL MEASURE OF LENGTH. 
6 feet = 
6082*66 foot = 
3 nautical miles = 
60 nautical miles or ) 
69*121 English miles ) 
860 degrees = 
1 fathom 
1 nautical mile 
1 league 
1 degree 
the earth's circuit. 
