Non-explosive
A non-explosive cracking agent for rock is being introduced on the Canadian market exclusively by Guy Guenette Ltd. of St-Laurent, Que. Called Betonamit, the product is a powder, which, when mixed wit…
News
Suggestion Box ESTIMATING RESERVES
In the June, 1989, issue we featured two articles which dealt, in varying degrees, with reserve estimation for mineral deposits. (See Three Solitudes by Norman Champigny and And Now the Bad News by Ke…
SINGLE-BOOM JUMBOS
How do manufacturers rate Htheir own drifters? By impact Henergy? If so, is that figure calculated or is it measured? Manufacturers that recommend a particular drifter for a given hole diameter may ha…
Winter Hose
A hose that can endure constant flexing at low temperatures has been introduced by Aeroquip Canada. The FC690 Polyon thermoplastic hose, specially designed for over-the- sheave and general hydraulic s…
THE GREAT PRAIRIE DIAMOND HUNT
The French have a saying: “As false as a diamond from Canada.” The phrase orig inates with a load of “diamonds” the explorer Jacques Cartier uncovered near the St. Lawrence River in 1541 and subsequen…
What’s New Indicator/Monitor
Bailey Controls of Burlington, Ont., introduces the PI750 intelligent process indicator/monitor. Only two models cover the full range of inputs. An ac model can be ranged from 1 to 600 VAC, while the …
50 Years Ago GOLD OUTPUT MAY EXCEED 5 MILLION OZ
If the existing rate of gold output is maintained for the last six months of 1939, Canada’s gold production should pass the 5-million- oz mark for the year, the Dominion Bureau of Statistics reports. …
VACUUM OIL PURIFICATION
Premium-grade lube and hydraulic oils are the life blood of of most mining and milling machinery. To be reliable, a machine must operate on clean oil. For this to be possible, operators must either c…
Cross-Cuts GOLDEN GRIDDLE
At these prices, it’s a steal. We’re talking about solid gold frying pans. “Pure unalderated gold would make a superb frying pan because it diffuses heat more evenly than iron or copper. Being chemica…
Editor’s Note FUTURE TENSE
In the picturesque Black Hills of South Dakota, heap leachers are learning at an accelerated pace what mining companies across the continent are discovering: people want action on environmental concer…
First Aid for Acid Burns
The only commercially available preparation available for skin burns caused by hydrofluoric acid is being marketed by Pharmascience Inc. of Montreal, Que. H-F Antidote Gel is a calcium gluconate gel t…
Letters The Role of Geostatics
In the regular column headed “Suggestion Box” in your June, 1989, issue, Normand Champigny quite rightly points out that ore reserve calculations should be done by a team of professionals, but unfortu…