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Sunday, November 27, 2011
Wednesday, November 23, 2011
Quartz-Dolerite
Quartz~Dolerite
Quartz-dolerite is very common in central Scotland, in intrusive formations, sills and dykes, and is widely quarried for roadstone. It was used with some success for making millstones at one time, the Millstone Grit part of the Carboniferous strata not being present in Scotland, but it is no longer used for this purpose, and would probably be illegal now due to the formation of small quartz and other silicate particles, which could cause the serious respiratory disease silicosis.
In Scotland quartz-dolerite is commonly known as whin or whinstone.
Quartz-dolerite contains many cooling fractures and weathers badly, becoming unstable. It is not uncommon for large boulders to break loose, and significant rockfalls are not uncommon. It is regarded as dangerous as far as climbing is concerned.
It is widely accepted to have complete and proper safety attire when dealing with this rare stone.
Referring Source: Wikipedia
Friday, November 4, 2011
Thursday, November 3, 2011
Monday, October 31, 2011
Saturday, October 15, 2011
Lunsemfwa Hydro ~ People
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Our Finance Manager / Company Secretary Mr. Evans Mutangama |
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The able accountant. |
Engineer Enock Silwamba, Station Manager (MPS) and me. |
Mr. Prince Mutengo ~ Senior Electrical Technologist |
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