PARTICULARS OF COMPANIES WORKING TIN PROPERTIES IN NORTHERN NIGERIA (continued 2)
Reading edition
“Of the area staked, certainly more than two-thirds carries alluvial ground of the thickness given above. Except in the bed of the stream, I would not expect rich patches, but a fairly uniform value throughout.
Water.—There is a continuous flow of water for sluicing purposes all the year round.
Grades.—Cannot be determined without survey, but at the lower (Forum) end of the property there is sufficient fall to allow the tailings to be inexpensively dealt with.
Costs.—Will compare favourably with other mines in the district, i.e. with ground of moderate value the costs would amount to between £10 and £15 per ton of black tin, and present transport charges £27 10s. per ton inclusive.
“Final tests of the flats are capable of being cheaply and quickly carried out by means of trial pits; boring is unnecessary. The probability is that the workable ground will prove to be of too large an area to be included in one mining lease, and that it will be necessary to split the present area into two or more properties.”