It is not to be supposed that the search for gems would have been
thus persevered in unless it was found to be remunerative; but it
is a curious fact that no Englishmen are ever to be seen at work
at this employment. The natives would still continue the search,
were they permitted, upon the "Vale of Rubies;" but I warned
them off on purchasing the land; and I have several good
specimens of gems which I have discovered by digging two feet
beneath the surface.
The surface soil being of a light, peaty quality, the stones,
from their greater gravity, lie beneath, mixed with a rounded
quartz gravel, which in ages past must have been subjected to the
action of running water. This quartz gravel, with its mixture of
gems, rests upon a stiff white pipe-clay.
In this stratum of gravel an infinite number of small, and for
the most part worthless, specimens of gems are found, consisting
of sapphire, ruby, emerald, jacinth, tourmaline, chrysoberyl,
zircon, cat's-eye, "moonstone," and "star-stone." Occasionally a
stone of value rewards the patient digger; but, unless he
thoroughly understands it, he is apt to pass over the gems of
most value as pieces of ironstone.
The mineralogy of Ceylon has hitherto been little understood.
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