RARE METALS AND THEIR DISTRIBUTION. 
99 
In Western Australia, vanadium has already been 
proved to be widespread in small quantities, particularly in 
the ancient greenstones, in the laterites, in the clays, and 
in coal ashes. In the two lirst named the proportion present 
is often far above the average given by Clarke. In many 
of these the exact proportion has been determined by the 
usual analytical methods with the following results : — 
Laterites. 
Turgite laterite, Kalgoorlie (i) .... V 2 0 5 % 0.40 
» .■ - (2) 0.45 
• ■ ’■ .. (3) • ■ • • 0.65 
Limonite laterite, .Kalgoorlie 0.15 
Turgite laterite, Coolgardie 0.55 
Bauxite laterite. Gooseberry Hill . . 0.23 
Greenstones and Allied Rocks. 
Diabase — Mt. Holmes V 2 0 3 % 0.09 
Gabbro Boulder, Kalgoorlie .... 0.06 
Amphibolite, Mt. Hunt 0.04 
,, Kalgoorlie 0.10 
Quartz Epidiorite, Boulder 0.25 
Epidiorite — Boulder 0.08 
Propylite, Kalgoorlie 0.30 
,, Boulder 0.04 
Carbonated Amphibolite — Boulder 0.33 
Ores. 
Greenstone schists — Boulder V, 0 3 % 0.11, 0.06, 
0.12, 0.32. 
,, „ Kalgoorlie 0.32, 1.21. 
Traces of vanadium in clays are disclosed by the yellow 
or green efflorescence of vanadium compounds of potash on 
the surface of a brick which has for the first time been wetted 
and then slowly dried. In the laboratory the presence of 
the same compounds is shown by the bright yellow colour 
of water which has been made to slowly percolate through 
a trial briquette burnt at a temperature not exceeding 
1,050° C. or thereabouts. In one or other of these ways 
vanadium has been detected in the following : — 
Albany — Brickearth (an estuarine silt), 4 miles north 
of town. 
Clackline — Fireclay, a granite decomposed in situ. 
Bellevue — Red brick earths, talus and flood earths. 
Belmont — Brown brick and tile clay, sedimentary. 
Collie — Brown surface clay. 
The ashes from Collie coal contain appreciable amounts 
of vanadium, the following figures being available : - 
Seam. Proprietary. Co operative Cardiff Cardiff CoPieburn 
No. 2. No, 1. No. 2. No. i. 
V 2 Oj % 0.21 0.10 0.07 0.05 0.02 
0.04 trace 
