The basis of Wainwright’s business is one of the most durable stones in the UK: basalt. This is volcanic in origin, and was formed 425 million years ago, during the Silurian Period.
During this time, volcanic lava known as andesite formed beds that were up to 150 metres deep. Layers of volcanic ash then formed in between these beds to create tuffs, resulting in the rock formations seen at Moons Hill Quarry today.
We concentrate on extracting andesite, as this is stronger and more durable than tuffs. These rocks provide the basis of our premium aggregates, and are widely regarded as among the best construction materials available.
In order to access the high-quality andesite on which our company is founded, it is necessary to excavate a variety of other rocks. Some of this is overburden, and has to be placed on waste tips, where it will eventually form the basis of a new habitat for plants and animals.
Some of the by-products of andesite extraction can be used to produce secondary-grade aggregates and fill materials, which we sell as part of our range. These provide cost-effective materials for a variety of uses, and ensure minimal waste from our quarrying procedures.
Chemical and mineral analysis of the basalt at Moons Hill reveals the following properties: