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Updated: May 24, 2025
We will, however, take, to begin with, the generally accepted theory as to the occurrence of alluvial gold. First, let it be said, that certain alluvial gold is unquestionably derived from the denudation of quartz lodes.
The fact is, the freighting business had grown to such important proportions that there was nearly as much excitement over suddenly acquired toll-road fortunes as over the wonderful silver mines. By and by I was smitten with the silver fever. "Prospecting parties" were leaving for the mountains every day, and discovering and taking possession of rich silver-bearing lodes and ledges of quartz.
With respect to occurrence, the older sandy and clay slates, chlorite slates, micaceous, and hornblendic schists, particularly at or near their junction with the intrusive granite and diorite, generally form the most likely geological country for the finding of mineral lodes, particularly gold, silver and tin.
Some of the curious and puzzling empirical rules gained from the life-long experience of miners in regard to the varying richness and poorness of mineral lodes, according to the directions in which they strike whether north, south, east or west may very probably be explained, and to some extent justified, by the fuller light which science may throw upon the conditions determining the action of earth-currents in producing results similar to those of electro deposition.
Gold-mining at Santo Domingo is confined almost entirely to auriferous quartz lodes, no alluvial deposits having been found that will pay for working. The lodes run east and west, and are nearly perpendicular, sometimes dipping a little to the north, sometimes a little to the south, and near the surface, generally turning over towards the face of the hill through which they cut.
Sunken riches lying beneath the sea in old Spanish galleons have excited the cupidity and the ingenuity of speculators and engineers; but the total amount of wealth thus hidden away from view is a mere insignificant fraction of the value of the rich metalliferous lodes which lie below the water level in flooded mines.
From what I gathered it would seem that the mines round here are not really very rich. You cannot depend on the working as in Cornwall, for they are without regular lodes. A rich "pocket" occurs here and there, but then is lost, the deposit not holding on to any depth.
The length of the concession along the line of lode is 2,780 feet, and from the way in which the lode stands on the western slope of the hill, and the dip being eastward, I am of opinion that if a drift were put through the hill other and parallel lodes would be found. Of course this can only be proved by experience.
I shall first point out that the facts once relied upon in support of some of these views are contradicted by later experience, and then consider how far any chronological order of arrangement can be recognised in the position of the precious and other metals in the earth's crust. In the first place, it is not true that veins in which tin abounds are the oldest lodes worked in Great Britain.
They said it was no business of theirs; that as I was the discoverer I had a right to sell the whole thing if I chose, and that they thought I had done the friendly thing by them in letting them in as partners. So you see it is all right and square. It is like enough, too, that we shall find some other lodes, and of course there they will come in on even terms with us.
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