Hillhead 2012
19 - 21 June 2012
International live demonstration show for the quarrying, recycling and heavy construction industries at Hillhead Quarry, Buxton, UK.
mica
Complex silicates of aluminium and potassium which are constituents of plutonic and volcanic rocks and which are characterized by their perfect basal cleavage. Used in the electrical industry.
The monthly journal for the quarry products industry.