Ontario’s first really big diamond was discovered in 1906. Father Paradis, a missionary in the Nipissing district, reported that he had found a 101 carat yellow diamond in glacial overburden; the stone was said to have a rough exterior and be about the size of a hen’s egg. Most surmise that the gem had been picked up somewhere near the father’s mission along the shores of Lake Timiskaming; it was auctioned at Tiffanies and has since disappeared below the radar.
Few should be surprised at the discovery of gems in Canada. For over thirty years now geologists have known that diamonds are associated with continental cratons. The Canadian Shield is but one of several cratons in the north; it is the largest such structure in the world.
The discovery and subsequent mining of diamonds just outside Yellowknife precipitated a wholesale mineralogical scramble. In recent years the search has moved in a southerly direction and it will continue right across the Shield until its rock dips down under the soil about an hour’s drive just north-east of Toronto.
Just recently there have been some astounding discoveries outside New Liskeard. Several kimberlite pipes were found and at least half of them are diamondiferous. Though diamonds are typically found in kimberlite these New Liskeard diamonds are embedded in the breccia along the side of highway 11 (above photo).
Ralph Schroetter, a local gemologist hunts for New Liskeard’s illusive crystals at night, in a nearby stream bed; he uses ultra violet light. As he explained, “Some diamonds fluoresce when exposed to that kind of stimulation. It makes them easier to spot”.
Check out the big chunk of raw silver that I found on the mine dumps in Cobalt – here (raw silver)
Check out the dirty world of blood diamonds here ….
And on the other hand as Shirley Bassey sees it – out of the mud and on to the finger … Diamonds are Forever