To minimise the amount of visible infrastructure within the North York Moors National Park, a protected area, the polyhalite will then be transported in an underground tunnel to the company s processing plant at Teesside.
12.
The only polyhalite mined in the world comes from a layer of rock over below the North Sea off the North Yorkshire coast in the UK . Deposited 260 million years ago, it lies below the potash seam at the Boulby Mine.
13.
The use of the Greek words for " many " and " salt " in " polyhalite " is due to polyhalite consisting of several metals that can form salts in the more general sense of the word " salt " used in chemistry.
14.
The use of the Greek words for " many " and " salt " in " polyhalite " is due to polyhalite consisting of several metals that can form salts in the more general sense of the word " salt " used in chemistry.
15.
In April 2011, the mine began the world s first commercial production of polyhalite, a rare mineral that has been found in large quantities in a seam out to sea from the mine, with total resources estimated at over a billion tonnes lying more than 1.5 kilometres offshore.
