Spinifex and Sand eBook

David Carnegie
This eBook from the Gutenberg Project consists of approximately 441 pages of information about Spinifex and Sand.

Spinifex and Sand eBook

David Carnegie
This eBook from the Gutenberg Project consists of approximately 441 pages of information about Spinifex and Sand.

Having brought the mine to such a state that it is ready to be purchased, in which unsatisfactory position it sometimes remains for many long months, I will now leave it, and will not touch upon “mills” and “batteries,” which are the same, or nearly so, in all countries, and are outside the province of a prospector, who, from his limited capital, is unable to erect the costly machinery necessary for the extraction of gold from quartz on a large scale.  Therefore the prospector parts with his mine as soon as he can find a purchaser, usually an agent, who sells at a profit to some company, which in its turn sells at a greater profit to the British or Australian public.

The humbler prospector confines his attention to alluvial gold, that is to say the gold which has been shed from the outcrop of the reef, by weathering and disintegration.  The present small rainfall, and the evidence from the non-existence of river-beds, that the past rainfall was no greater, go to show that this weathering is due to the sudden change in temperature between night and day, the extreme dryness of the atmosphere, and strong winds.  Without any rush of water it is not possible for any great depth of alluvial soil to have been formed, nor can the gold have been carried far from the reef, or reefs, in which it has its origin.  For this reason, though exceptionally rich in places, the alluvial diggings have never been either of great extent, or depth, or of general richness.

In many places the alluvial soil is not more than a few inches in depth.  It is in such places that “specking” may be carried on, which consists in walking slowly about with eyes to the ground, and picking up any nuggets that may be seen.  Many thousand ounces of gold have been found in this simple manner.  Where, however, the alluvium is deeper, a considerable amount of labour must be expended before gold can be won.  In countries blessed with abundant rainfall the nuggets can be separated from the dirt by a comparatively simple arrangement of sluices and cradles.  In the drought-stricken west of Australia other means must be adopted, which I will endeavour to describe.

Having picked and dug out a certain amount of the alluvial ground which, it is hoped, contains nuggets of various sizes, the digger then breaks up any lumps of clay or earth by means of a heavy billet of wood, or like implement, and this prepared dirt, as it is called, he treats in one of the following ways:—­

1.  By means of two iron dishes, in diameter 15 to 18 inches, and in depth 4 to 5 inches.

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Spinifex and Sand from Project Gutenberg. Public domain.