Asbestos, Its production and use: With some account of the asbestos mines of CanadaJones, Robert H.
Science
Asbestos, Its production and use: With some account of the asbestos mines of Canada
Jones, Robert H.
Asbestos; Asbestos mines and mining -- Québec (Province)
Having heard that there were some fine specimens of asbestos on view at
the recent exhibition of the United States products at Earl's Court, I
made a journey there specially to see them. In this, however, I was
disappointed. There was but one small tray of so-called asbestos
(amphibole) on view; and this was of a coarse woody character, very
similar in appearance to a sample I had had sent to me recently from
California. It was, moreover, of a very poor colour and certainly not of
the kind that would readily find a market. I found there, however, a
piece of unmistakable chrysotile, grouped amongst a miscellaneous lot of
American minerals. The exhibitor at once told me, in reply to my
questions, that this was not an American product at all, but that it was
a "vegetable matter" found in Canada. He evidently did not know much
about it, and said it was not asbestos at all. It was not by any means a
fine specimen: it had somewhat the appearance of ordinary Thetford No.
1, though differing slightly in colour. I could get no further
information about it, except that it had come from near Ottawa.
At this exhibition I found a splendid display of crocidolite, the sight
of which well repaid the visit. I secured a good specimen, but found, on
enquiry, that like all the superior qualities of this mineral, it had
been brought from Griqualand (South Africa). The sample I secured was of
the kind that in the States is called "Tiger-eye," as I presume, from
its general tawny-coloured streaky brilliancy. The exhibitor said it was
a silicate of iron occurring in asbestos-like fibres. It is of an
exceedingly hard, densely compact nature; from its hardness difficult to
work, but susceptible of a very high polish. A few years ago it was
thought to be a precious stone and accordingly commanded a high price,
but recent discoveries of large deposits considerably reduced its value.
It is used for a variety of ornamental purposes, for which, from its
extreme natural beauty, it is peculiarly adapted. The grain is very fine
and in its rough state the fibres are singularly distinct.
Public-domain text, read in full here on John Shaqi.
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